./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be --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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 ....................................................................................................................................................................................................................................... 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be --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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:44:13,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:44:13,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:44:13,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:44:13,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:44:13,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:44:13,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:44:13,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:44:13,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:44:13,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:44:13,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:44:13,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:44:13,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:44:13,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:44:13,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:44:13,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:44:13,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:44:13,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:44:13,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:44:13,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:44:13,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:44:13,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:44:13,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:44:13,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:44:13,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:44:13,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:44:13,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:44:13,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:44:13,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:44:13,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:44:13,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:44:13,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:44:13,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:44:13,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:44:13,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:44:13,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:44:13,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:44:13,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:44:13,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:44:13,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:44:13,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:44:13,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:44:13,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:44:13,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:44:13,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:44:13,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:44:13,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:44:13,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:44:13,612 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:44:13,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:44:13,612 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:44:13,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:44:13,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:44:13,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:44:13,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:44:13,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:44:13,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:44:13,615 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:44:13,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:44:13,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:44:13,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:44:13,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:44:13,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:44:13,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:44:13,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:13,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:44:13,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:44:13,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:44:13,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:44:13,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:44:13,619 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:44:13,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:44:13,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:44:13,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:44:13,622 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2021-10-21 19:44:13,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:44:13,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:44:13,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:44:13,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:44:13,931 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:44:13,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-21 19:44:13,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/83b2ac180/c89e2ae138de409888f2aa5c5663ff3a/FLAG90e279550 [2021-10-21 19:44:14,433 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:44:14,434 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-21 19:44:14,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/83b2ac180/c89e2ae138de409888f2aa5c5663ff3a/FLAG90e279550 [2021-10-21 19:44:14,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/83b2ac180/c89e2ae138de409888f2aa5c5663ff3a [2021-10-21 19:44:14,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:44:14,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:44:14,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:14,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:44:14,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:44:14,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15872406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14, skipping insertion in model container [2021-10-21 19:44:14,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:44:14,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:44:15,057 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-21 19:44:15,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:15,087 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:44:15,100 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-21 19:44:15,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:15,111 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:44:15,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15 WrapperNode [2021-10-21 19:44:15,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:15,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:15,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:44:15,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:44:15,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:15,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:44:15,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:44:15,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:44:15,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:44:15,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:44:15,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:44:15,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:44:15,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (1/1) ... [2021-10-21 19:44:15,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:44:15,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:44:15,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:44:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:44:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:44:15,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:44:15,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:44:15,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:44:15,405 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 19:44:15,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:15 BoogieIcfgContainer [2021-10-21 19:44:15,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:44:15,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:44:15,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:44:15,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:44:15,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:44:14" (1/3) ... [2021-10-21 19:44:15,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2c833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:15, skipping insertion in model container [2021-10-21 19:44:15,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:15" (2/3) ... [2021-10-21 19:44:15,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2c833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:15, skipping insertion in model container [2021-10-21 19:44:15,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:15" (3/3) ... [2021-10-21 19:44:15,440 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-10-21 19:44:15,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:44:15,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:44:15,544 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:44:15,551 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 [2021-10-21 19:44:15,551 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:44:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-10-21 19:44:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:44:15,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:15,578 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:44:15,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-21 19:44:15,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:15,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000405911] [2021-10-21 19:44:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:15,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:15,748 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:15,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:15,826 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:44:15,827 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:44:15,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:44:15,835 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:44:15,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:44:15 BoogieIcfgContainer [2021-10-21 19:44:15,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:44:15,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:44:15,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:44:15,852 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:44:15,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:15" (3/4) ... [2021-10-21 19:44:15,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:44:15,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:44:15,857 INFO L168 Benchmark]: Toolchain (without parser) took 1017.63 ms. Allocated memory is still 107.0 MB. Free memory was 64.5 MB in the beginning and 58.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:15,858 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 80.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:15,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.04 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 82.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:15,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:15,861 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.7 MB in the end (delta: 767.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:15,862 INFO L168 Benchmark]: RCFGBuilder took 238.51 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 71.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:15,864 INFO L168 Benchmark]: TraceAbstraction took 441.01 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 58.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:15,869 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 58.7 MB in the end (delta: 183.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:15,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 80.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.04 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 82.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.69 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.7 MB in the end (delta: 767.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 238.51 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 71.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 441.01 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 58.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.14 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 58.7 MB in the end (delta: 183.5 kB). 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 308.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 17.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.7ms SsaConstructionTime, 51.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:44:15,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 19:44:18,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:44:18,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:44:18,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:44:18,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:44:18,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:44:18,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:44:18,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:44:18,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:44:18,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:44:18,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:44:18,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:44:18,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:44:18,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:44:18,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:44:18,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:44:18,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:44:18,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:44:18,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:44:18,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:44:18,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:44:18,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:44:18,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:44:18,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:44:18,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:44:18,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:44:18,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:44:18,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:44:18,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:44:18,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:44:18,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:44:18,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:44:18,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:44:18,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:44:18,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:44:18,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:44:18,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:44:18,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:44:18,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:44:18,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:44:18,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:44:18,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:44:18,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:44:18,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:44:18,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:44:18,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:44:18,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:44:18,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:44:18,813 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:44:18,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:44:18,814 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:44:18,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:44:18,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:44:18,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:44:18,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:44:18,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:44:18,816 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:44:18,816 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:44:18,816 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:44:18,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:44:18,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:44:18,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:44:18,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:44:18,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:44:18,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:44:18,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:18,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:44:18,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:44:18,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:44:18,819 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:44:18,819 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:44:18,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:44:18,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:44:18,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:44:18,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:44:18,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:44:18,821 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2021-10-21 19:44:19,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:44:19,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:44:19,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:44:19,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:44:19,270 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:44:19,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-21 19:44:19,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/96dce038d/382b2e5644ef43b19dbe05a069d0ebfe/FLAG4fcf0c219 [2021-10-21 19:44:19,869 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:44:19,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-21 19:44:19,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/96dce038d/382b2e5644ef43b19dbe05a069d0ebfe/FLAG4fcf0c219 [2021-10-21 19:44:20,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/data/96dce038d/382b2e5644ef43b19dbe05a069d0ebfe [2021-10-21 19:44:20,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:44:20,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:44:20,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:20,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:44:20,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:44:20,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b108adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20, skipping insertion in model container [2021-10-21 19:44:20,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:44:20,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:44:20,424 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-21 19:44:20,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:20,441 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:44:20,454 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_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-21 19:44:20,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:20,468 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:44:20,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20 WrapperNode [2021-10-21 19:44:20,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:20,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:20,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:44:20,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:44:20,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:20,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:44:20,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:44:20,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:44:20,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:44:20,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:44:20,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:44:20,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:44:20,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (1/1) ... [2021-10-21 19:44:20,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:20,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:44:20,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:44:20,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:44:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:44:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:44:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:44:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:44:20,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:44:20,994 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 19:44:20,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:20 BoogieIcfgContainer [2021-10-21 19:44:20,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:44:20,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:44:20,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:44:21,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:44:21,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:44:20" (1/3) ... [2021-10-21 19:44:21,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc671ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:21, skipping insertion in model container [2021-10-21 19:44:21,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:20" (2/3) ... [2021-10-21 19:44:21,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc671ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:21, skipping insertion in model container [2021-10-21 19:44:21,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:20" (3/3) ... [2021-10-21 19:44:21,008 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-10-21 19:44:21,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:44:21,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:44:21,107 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:44:21,134 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 [2021-10-21 19:44:21,135 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:44:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-10-21 19:44:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:44:21,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:21,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:44:21,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:21,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:21,162 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-21 19:44:21,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:44:21,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836425528] [2021-10-21 19:44:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:21,176 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:44:21,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:44:21,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:44:21,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:44:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:21,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:44:21,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:44:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:21,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:44:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:22,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:44:22,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836425528] [2021-10-21 19:44:22,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836425528] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:22,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:22,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:44:22,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467541568] [2021-10-21 19:44:22,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:44:22,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:44:22,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:44:22,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:44:22,269 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-21 19:44:22,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:22,353 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-21 19:44:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:44:22,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 4 [2021-10-21 19:44:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:44:22,364 INFO L225 Difference]: With dead ends: 11 [2021-10-21 19:44:22,364 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:44:22,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 672.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:44:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:44:22,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:44:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-21 19:44:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:44:22,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-21 19:44:22,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:44:22,393 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:44:22,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-21 19:44:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:44:22,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:44:22,397 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:44:22,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:22,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:44:22,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:44:22,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:44:22,616 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:44:22,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:44:22,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:44:22,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-21 19:44:22,617 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-21 19:44:22,617 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-10-21 19:44:22,617 INFO L857 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2021-10-21 19:44:22,622 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:44:22,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:44:22 BoogieIcfgContainer [2021-10-21 19:44:22,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:44:22,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:44:22,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:44:22,627 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:44:22,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:20" (3/4) ... [2021-10-21 19:44:22,631 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:44:22,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 19:44:22,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:44:22,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:44:22,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:44:22,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:44:22,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:44:22,686 INFO L168 Benchmark]: Toolchain (without parser) took 2435.23 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 30.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,686 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:22,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.72 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 32.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.60 ms. Allocated memory is still 62.9 MB. Free memory was 32.4 MB in the beginning and 45.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,689 INFO L168 Benchmark]: Boogie Preprocessor took 53.30 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 44.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:22,690 INFO L168 Benchmark]: RCFGBuilder took 400.58 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 36.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,690 INFO L168 Benchmark]: TraceAbstraction took 1627.99 ms. Allocated memory is still 62.9 MB. Free memory was 35.4 MB in the beginning and 32.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,694 INFO L168 Benchmark]: Witness Printer took 57.55 ms. Allocated memory is still 62.9 MB. Free memory was 32.5 MB in the beginning and 30.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:22,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.72 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 32.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.60 ms. Allocated memory is still 62.9 MB. Free memory was 32.4 MB in the beginning and 45.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.30 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 44.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 400.58 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 36.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1627.99 ms. Allocated memory is still 62.9 MB. Free memory was 35.4 MB in the beginning and 32.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 57.55 ms. Allocated memory is still 62.9 MB. Free memory was 32.5 MB in the beginning and 30.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1517.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 116.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3.6ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 14 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 672.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 18.7ms SsaConstructionTime, 51.7ms SatisfiabilityAnalysisTime, 959.1ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-21 19:44:22,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93af5fbe-52f1-4d7d-8d9d-5c055641fafa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...