./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:28:46,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:46,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:46,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:46,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:46,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:46,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:46,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:46,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:46,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:46,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:46,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:46,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:46,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:46,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:46,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:46,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:46,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:46,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:46,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:46,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:46,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:46,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:46,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:46,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:46,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:46,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:46,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:46,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:46,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:46,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:46,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:46,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:46,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:46,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:46,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:46,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:46,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:46,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:46,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:46,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:46,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:28:46,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:46,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:46,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:46,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:46,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:46,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:46,307 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:46,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:46,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:46,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:28:46,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:46,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:46,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:28:46,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:28:46,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:28:46,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:46,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:46,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:46,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:28:46,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:46,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:46,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:28:46,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:46,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:46,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:28:46,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:28:46,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:28:46,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:28:46,337 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:28:46,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:28:46,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:28:46,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:46,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-28 23:28:46,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:46,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:46,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:46,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:46,718 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:46,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 23:28:46,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/371e7a56b/e8fa2c4010be4210a7b7840544b98cde/FLAGe2a1a3f81 [2021-10-28 23:28:47,447 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:47,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 23:28:47,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/371e7a56b/e8fa2c4010be4210a7b7840544b98cde/FLAGe2a1a3f81 [2021-10-28 23:28:47,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/371e7a56b/e8fa2c4010be4210a7b7840544b98cde [2021-10-28 23:28:47,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:47,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:47,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:47,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:47,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:47,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:47" (1/1) ... [2021-10-28 23:28:47,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613eaf54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:47, skipping insertion in model container [2021-10-28 23:28:47,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:47" (1/1) ... [2021-10-28 23:28:47,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:47,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:48,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 23:28:48,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:48,143 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:48,156 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 23:28:48,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:48,187 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:48,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48 WrapperNode [2021-10-28 23:28:48,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:48,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:48,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:48,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:48,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:48,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:48,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:48,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:48,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:48,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:48,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:48,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:48,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (1/1) ... [2021-10-28 23:28:48,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:48,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:48,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:28:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 23:28:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:28:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 23:28:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:28:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:28:48,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:48,756 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 23:28:48,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:48 BoogieIcfgContainer [2021-10-28 23:28:48,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:48,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:28:48,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:28:48,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:28:48,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:28:47" (1/3) ... [2021-10-28 23:28:48,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ca031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:48, skipping insertion in model container [2021-10-28 23:28:48,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:48" (2/3) ... [2021-10-28 23:28:48,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ca031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:48, skipping insertion in model container [2021-10-28 23:28:48,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:48" (3/3) ... [2021-10-28 23:28:48,769 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-28 23:28:48,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:28:48,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:28:48,855 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:28:48,879 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:28:48,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:28:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:28:48,927 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:48,928 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:48,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-28 23:28:48,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:48,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162663509] [2021-10-28 23:28:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:48,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:49,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:49,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162663509] [2021-10-28 23:28:49,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162663509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:49,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:49,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:28:49,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661724162] [2021-10-28 23:28:49,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:28:49,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:28:49,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:49,182 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:49,200 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-28 23:28:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:28:49,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 23:28:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:49,211 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:28:49,212 INFO L226 Difference]: Without dead ends: 10 [2021-10-28 23:28:49,215 INFO L786 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 [2021-10-28 23:28:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-28 23:28:49,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 23:28:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-28 23:28:49,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-28 23:28:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:49,255 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-28 23:28:49,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-28 23:28:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:28:49,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:49,257 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:49,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:28:49,258 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:49,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:49,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-28 23:28:49,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:49,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910287174] [2021-10-28 23:28:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:49,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:49,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:49,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910287174] [2021-10-28 23:28:49,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910287174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:49,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:49,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:28:49,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382394991] [2021-10-28 23:28:49,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:28:49,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:49,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:28:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:28:49,402 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:49,413 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-28 23:28:49,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:28:49,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 23:28:49,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:49,415 INFO L225 Difference]: With dead ends: 16 [2021-10-28 23:28:49,415 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 23:28:49,417 INFO L786 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 [2021-10-28 23:28:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 23:28:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 23:28:49,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-28 23:28:49,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-28 23:28:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:49,421 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-28 23:28:49,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-28 23:28:49,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:28:49,447 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:49,447 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:49,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:28:49,448 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-28 23:28:49,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:49,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3577970] [2021-10-28 23:28:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:49,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:49,604 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:28:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:49,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:28:49,766 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:28:49,768 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:49,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:28:49,776 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:28:49,788 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:28:49,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:28:49 BoogieIcfgContainer [2021-10-28 23:28:49,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:28:49,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:28:49,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:28:49,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:28:49,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:48" (3/4) ... [2021-10-28 23:28:49,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:28:49,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:28:49,857 INFO L168 Benchmark]: Toolchain (without parser) took 2013.95 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 57.3 MB in the beginning and 97.5 MB in the end (delta: -40.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:49,858 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:49,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.05 ms. Allocated memory is still 98.6 MB. Free memory was 57.1 MB in the beginning and 73.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:49,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 98.6 MB. Free memory was 73.5 MB in the beginning and 72.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:49,869 INFO L168 Benchmark]: Boogie Preprocessor took 34.05 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 70.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:49,869 INFO L168 Benchmark]: RCFGBuilder took 485.26 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 59.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:49,870 INFO L168 Benchmark]: TraceAbstraction took 1080.43 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 97.5 MB in the end (delta: -38.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:49,871 INFO L168 Benchmark]: Witness Printer took 7.43 ms. Allocated memory is still 127.9 MB. Free memory is still 97.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:49,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.05 ms. Allocated memory is still 98.6 MB. Free memory was 57.1 MB in the beginning and 73.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 98.6 MB. Free memory was 73.5 MB in the beginning and 72.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.05 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 70.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 485.26 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 59.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1080.43 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 97.5 MB in the end (delta: -38.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.43 ms. Allocated memory is still 127.9 MB. Free memory is still 97.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 31. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi [L35] COND FALSE !(\read(cond)) [L41] return xi; [L41] return xi; [L41] return xi; [L51] r = inv(a) [L16] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 3 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=14occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:28:49,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:28:53,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:53,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:53,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:53,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:53,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:53,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:53,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:53,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:53,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:53,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:53,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:53,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:53,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:53,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:53,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:53,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:53,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:53,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:53,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:53,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:53,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:53,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:53,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:53,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:53,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:53,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:53,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:53,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:53,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:53,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:53,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:53,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:53,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:53,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:53,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:53,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:53,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:53,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:53,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:53,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:53,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:28:53,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:53,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:53,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:53,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:53,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:53,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:53,346 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:53,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:53,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:53,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:53,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:53,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:28:53,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:28:53,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:28:53,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:28:53,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:28:53,350 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:53,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:53,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:53,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:28:53,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:53,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:53,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:28:53,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:53,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:53,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:28:53,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:28:53,353 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:28:53,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:28:53,354 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:28:53,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:28:53,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:28:53,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:53,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:28:53,355 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-28 23:28:53,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:53,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:53,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:53,939 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:53,940 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:53,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 23:28:54,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/eef0c5dad/ce4f92227f1d449b85cca646dbcb1f3c/FLAGaac3d2a18 [2021-10-28 23:28:54,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:54,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 23:28:54,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/eef0c5dad/ce4f92227f1d449b85cca646dbcb1f3c/FLAGaac3d2a18 [2021-10-28 23:28:55,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/data/eef0c5dad/ce4f92227f1d449b85cca646dbcb1f3c [2021-10-28 23:28:55,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:55,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:55,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:55,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:55,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:55,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388c9b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55, skipping insertion in model container [2021-10-28 23:28:55,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:55,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:55,314 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 23:28:55,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:55,356 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:55,373 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 23:28:55,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:55,476 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:55,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55 WrapperNode [2021-10-28 23:28:55,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:55,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:55,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:55,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:55,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:55,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:55,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:55,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:55,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:55,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:55,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:55,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:55,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (1/1) ... [2021-10-28 23:28:55,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:55,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:55,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:55,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 23:28:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 23:28:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:28:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-28 23:28:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:55,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-28 23:28:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:28:58,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:58,127 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 23:28:58,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:58 BoogieIcfgContainer [2021-10-28 23:28:58,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:58,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:28:58,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:28:58,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:28:58,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:28:55" (1/3) ... [2021-10-28 23:28:58,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffa7222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:58, skipping insertion in model container [2021-10-28 23:28:58,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:55" (2/3) ... [2021-10-28 23:28:58,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffa7222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:58, skipping insertion in model container [2021-10-28 23:28:58,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:58" (3/3) ... [2021-10-28 23:28:58,144 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-28 23:28:58,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:28:58,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:28:58,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:28:58,230 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:28:58,231 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:28:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:28:58,254 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:58,255 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:58,255 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:58,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:58,263 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-28 23:28:58,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:58,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905477059] [2021-10-28 23:28:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:58,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:58,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:58,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:28:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:28:58,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,707 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:58,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905477059] [2021-10-28 23:28:58,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905477059] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:58,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:58,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:28:58,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601906166] [2021-10-28 23:28:58,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:28:58,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:28:58,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:58,745 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:28:58,765 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-28 23:28:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:28:58,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 23:28:58,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:28:58,778 INFO L225 Difference]: With dead ends: 25 [2021-10-28 23:28:58,778 INFO L226 Difference]: Without dead ends: 10 [2021-10-28 23:28:58,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:28:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-28 23:28:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 23:28:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:58,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-28 23:28:58,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-28 23:28:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:28:58,821 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-28 23:28:58,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:28:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-28 23:28:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:28:58,823 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:28:58,823 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:58,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:28:59,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:28:59,040 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:28:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-28 23:28:59,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:28:59,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916186006] [2021-10-28 23:28:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:59,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:28:59,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:28:59,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:28:59,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:28:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:59,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:28:59,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:28:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:59,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:28:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:59,358 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:28:59,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916186006] [2021-10-28 23:28:59,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916186006] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:59,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:59,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:28:59,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743376367] [2021-10-28 23:28:59,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:28:59,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:28:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:28:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:28:59,364 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:01,836 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-28 23:29:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:29:01,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 23:29:01,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:29:01,838 INFO L225 Difference]: With dead ends: 16 [2021-10-28 23:29:01,838 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 23:29:01,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:29:01,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 23:29:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 23:29:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:01,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-28 23:29:01,844 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-28 23:29:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:29:01,844 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-28 23:29:01,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:01,845 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-28 23:29:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:29:01,845 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:29:01,847 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:01,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:02,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:29:02,048 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:29:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-28 23:29:02,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:29:02,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660907449] [2021-10-28 23:29:02,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:02,051 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:29:02,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:29:02,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:29:02,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:29:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:03,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:29:03,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:04,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 340 treesize of output 322 [2021-10-28 23:29:04,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 450 treesize of output 438 [2021-10-28 23:29:19,545 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))) c_ULTIMATE.start_inv_~xi~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-28 23:29:46,399 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= |c_ULTIMATE.start_inv_#res| (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-28 23:30:47,490 WARN L207 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 9 DAG size of output: 1 [2021-10-28 23:31:22,459 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse4) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse4) .cse4))))) (let ((.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0)))) (.cse1 (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (or (not .cse1) (not .cse2))) (and .cse2 .cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))))))) is different from false [2021-10-28 23:32:14,317 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse2) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse2) .cse2))))) (or (not (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))))))) is different from false [2021-10-28 23:32:16,378 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse2) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse2) .cse2))))) (or (not (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))))))) is different from true [2021-10-28 23:32:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-28 23:32:16,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:32:27,806 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-10-28 23:32:29,930 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-10-28 23:32:29,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2024 treesize of output 1916 [2021-10-28 23:32:29,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2660 treesize of output 2588 [2021-10-28 23:33:18,301 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) is different from false [2021-10-28 23:33:20,424 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) is different from true [2021-10-28 23:33:52,183 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-10-28 23:34:34,863 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse2) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse2) .cse2))))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))))))) is different from false [2021-10-28 23:34:36,993 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse2) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse2) .cse2))))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))))))) is different from true [2021-10-28 23:34:36,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-28 23:34:36,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:34:36,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660907449] [2021-10-28 23:34:36,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660907449] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:34:36,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:34:36,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-10-28 23:34:36,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516078137] [2021-10-28 23:34:36,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:34:36,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:34:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:34:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=58, Unknown=12, NotChecked=168, Total=272 [2021-10-28 23:34:36,999 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:34:39,163 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse2) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse2) .cse2))))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))))))) is different from false [2021-10-28 23:34:41,302 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse2) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse2) .cse2))))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))))))) is different from true [2021-10-28 23:34:43,451 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (or (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) .cse5) (let ((.cse6 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (.cse7 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse6 .cse7) (and .cse5 (or (not .cse6) (not .cse7))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-28 23:34:47,787 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 23:34:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:34:47,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-10-28 23:34:47,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:34:47,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:34:47,990 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:869) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 49 more [2021-10-28 23:34:47,995 INFO L168 Benchmark]: Toolchain (without parser) took 352886.96 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.7 MB in the beginning and 64.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:47,995 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:34:48,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.67 ms. Allocated memory is still 65.0 MB. Free memory was 44.4 MB in the beginning and 48.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:48,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.56 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:34:48,007 INFO L168 Benchmark]: Boogie Preprocessor took 41.87 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 45.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:34:48,008 INFO L168 Benchmark]: RCFGBuilder took 2550.11 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 33.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:34:48,008 INFO L168 Benchmark]: TraceAbstraction took 349859.03 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 33.1 MB in the beginning and 64.4 MB in the end (delta: -31.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:34:48,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.67 ms. Allocated memory is still 65.0 MB. Free memory was 44.4 MB in the beginning and 48.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.56 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.87 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 45.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2550.11 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 33.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 349859.03 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 33.1 MB in the beginning and 64.4 MB in the end (delta: -31.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3104e61a-2e91-46f3-8197-f8ad250b7fb0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...