./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/water_pid.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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 ....................................................................................................................................................................................................................................................................... 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:17:13,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:17:13,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:17:13,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:17:13,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:17:13,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:17:13,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:17:13,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:17:13,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:17:13,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:17:13,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:17:13,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:17:13,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:17:13,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:17:13,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:17:13,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:17:13,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:17:13,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:17:13,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:17:13,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:17:13,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:17:13,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:17:13,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:17:13,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:17:13,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:17:13,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:17:13,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:17:13,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:17:13,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:17:13,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:17:13,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:17:13,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:17:13,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:17:13,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:17:13,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:17:13,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:17:13,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:17:13,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:17:13,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:17:13,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:17:13,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:17:13,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:17:13,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:17:13,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:17:13,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:17:13,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:17:13,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:17:13,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:17:13,312 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:17:13,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:17:13,313 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:17:13,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:17:13,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:17:13,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:17:13,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:17:13,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:17:13,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:17:13,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:17:13,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:17:13,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:17:13,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:17:13,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:17:13,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:17:13,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:17:13,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:13,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:17:13,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:17:13,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:17:13,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:17:13,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:17:13,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:17:13,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:17:13,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:17:13,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:17:13,322 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2021-10-28 23:17:13,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:17:13,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:17:13,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:17:13,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:17:13,691 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:17:13,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/water_pid.c [2021-10-28 23:17:13,767 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/844f1401a/4b8deb1ba38e436e8992ec49c3b4baa8/FLAG88959bcf9 [2021-10-28 23:17:14,242 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:17:14,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c [2021-10-28 23:17:14,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/844f1401a/4b8deb1ba38e436e8992ec49c3b4baa8/FLAG88959bcf9 [2021-10-28 23:17:14,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/844f1401a/4b8deb1ba38e436e8992ec49c3b4baa8 [2021-10-28 23:17:14,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:17:14,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:17:14,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:14,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:17:14,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:17:14,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed114f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14, skipping insertion in model container [2021-10-28 23:17:14,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:17:14,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:17:14,847 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2021-10-28 23:17:14,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:14,891 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:17:14,905 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2021-10-28 23:17:14,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:14,943 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:17:14,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14 WrapperNode [2021-10-28 23:17:14,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:14,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:14,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:17:14,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:17:14,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:15,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:17:15,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:17:15,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:17:15,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:17:15,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:17:15,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:17:15,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:17:15,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:15,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:17:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:17:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:17:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:17:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:17:15,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:17:15,416 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 23:17:15,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:15 BoogieIcfgContainer [2021-10-28 23:17:15,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:17:15,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:17:15,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:17:15,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:17:15,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:17:14" (1/3) ... [2021-10-28 23:17:15,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a032de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:17:15, skipping insertion in model container [2021-10-28 23:17:15,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (2/3) ... [2021-10-28 23:17:15,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a032de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:17:15, skipping insertion in model container [2021-10-28 23:17:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:15" (3/3) ... [2021-10-28 23:17:15,428 INFO L111 eAbstractionObserver]: Analyzing ICFG water_pid.c [2021-10-28 23:17:15,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:17:15,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:17:15,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:17:15,495 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 23:17:15,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:17:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 23:17:15,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:17:15,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:17:15,520 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:17:15,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:17:15,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:15,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1804134213, now seen corresponding path program 1 times [2021-10-28 23:17:15,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:15,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051071075] [2021-10-28 23:17:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:15,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,673 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,759 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:15,762 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:17:15,763 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:17:15,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:17:15,770 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:17:15,774 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:17:15,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:17:15 BoogieIcfgContainer [2021-10-28 23:17:15,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:17:15,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:17:15,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:17:15,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:17:15,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:15" (3/4) ... [2021-10-28 23:17:15,828 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:17:15,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:17:15,830 INFO L168 Benchmark]: Toolchain (without parser) took 1214.67 ms. Allocated memory is still 100.7 MB. Free memory was 59.5 MB in the beginning and 47.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,832 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 75.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:15,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.39 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 75.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.79 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,836 INFO L168 Benchmark]: Boogie Preprocessor took 53.96 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,838 INFO L168 Benchmark]: RCFGBuilder took 361.61 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 63.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,839 INFO L168 Benchmark]: TraceAbstraction took 389.35 ms. Allocated memory is still 100.7 MB. Free memory was 62.5 MB in the beginning and 47.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:15,840 INFO L168 Benchmark]: Witness Printer took 13.86 ms. Allocated memory is still 100.7 MB. Free memory is still 47.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:15,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 75.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.39 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 75.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.79 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.96 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 361.61 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 63.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 389.35 ms. Allocated memory is still 100.7 MB. Free memory was 62.5 MB in the beginning and 47.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 13.86 ms. Allocated memory is still 100.7 MB. Free memory is still 47.8 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 [L18] yn += ui [L19] return yn; VAL [yn=49] [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [yn=49] [L39] COND TRUE i<120 [L18] yn += ui [L19] return yn; VAL [yn=52] [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L8] COND TRUE !(cond) VAL [yn=52] [L8] reach_error() VAL [yn=52] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2021-10-28 23:17:15,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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 23:17:18,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:17:18,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:17:18,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:17:18,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:17:18,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:17:18,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:17:18,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:17:18,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:17:18,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:17:18,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:17:18,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:17:18,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:17:18,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:17:18,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:17:18,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:17:18,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:17:18,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:17:18,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:17:18,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:17:18,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:17:18,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:17:18,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:17:18,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:17:18,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:17:18,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:17:18,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:17:18,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:17:18,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:17:18,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:17:18,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:17:18,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:17:18,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:17:18,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:17:18,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:17:18,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:17:18,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:17:18,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:17:18,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:17:18,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:17:18,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:17:18,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:17:18,901 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:17:18,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:17:18,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:17:18,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:17:18,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:17:18,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:17:18,905 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:17:18,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:17:18,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:17:18,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:17:18,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:17:18,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:17:18,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:17:18,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:17:18,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:17:18,907 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:17:18,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:17:18,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:17:18,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:17:18,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:17:18,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:17:18,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:17:18,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:17:18,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:18,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:17:18,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:17:18,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:17:18,910 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:17:18,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:17:18,910 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:17:18,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:17:18,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:17:18,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:17:18,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:17:18,911 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2021-10-28 23:17:19,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:17:19,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:17:19,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:17:19,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:17:19,443 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:17:19,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/water_pid.c [2021-10-28 23:17:19,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/26af2da85/bf79cd0ba5ae46209de95b1fa2e4ed39/FLAG5e1e59441 [2021-10-28 23:17:20,241 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:17:20,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c [2021-10-28 23:17:20,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/26af2da85/bf79cd0ba5ae46209de95b1fa2e4ed39/FLAG5e1e59441 [2021-10-28 23:17:20,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/data/26af2da85/bf79cd0ba5ae46209de95b1fa2e4ed39 [2021-10-28 23:17:20,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:17:20,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:17:20,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:20,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:17:20,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:17:20,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737127f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20, skipping insertion in model container [2021-10-28 23:17:20,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:17:20,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:17:20,798 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2021-10-28 23:17:20,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:20,840 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:17:20,856 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_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2021-10-28 23:17:20,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:20,885 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:17:20,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20 WrapperNode [2021-10-28 23:17:20,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:20,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:20,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:17:20,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:17:20,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:20,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:17:20,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:17:20,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:17:20,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:20,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:21,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:21,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:21,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:21,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:17:21,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:17:21,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:17:21,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:17:21,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (1/1) ... [2021-10-28 23:17:21,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:17:21,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:21,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:21,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:17:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:17:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:17:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:17:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:17:25,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:17:25,552 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 23:17:25,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:25 BoogieIcfgContainer [2021-10-28 23:17:25,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:17:25,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:17:25,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:17:25,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:17:25,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:17:20" (1/3) ... [2021-10-28 23:17:25,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f553c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:17:25, skipping insertion in model container [2021-10-28 23:17:25,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:20" (2/3) ... [2021-10-28 23:17:25,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f553c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:17:25, skipping insertion in model container [2021-10-28 23:17:25,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:25" (3/3) ... [2021-10-28 23:17:25,567 INFO L111 eAbstractionObserver]: Analyzing ICFG water_pid.c [2021-10-28 23:17:25,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:17:25,586 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:17:25,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:17:25,650 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 23:17:25,650 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:17:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 23:17:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:17:25,673 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:17:25,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:17:25,675 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:17:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1804134213, now seen corresponding path program 1 times [2021-10-28 23:17:25,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:17:25,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723908588] [2021-10-28 23:17:25,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:25,699 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:17:25,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:17:25,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:17:25,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:17:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:29,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:17:29,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:30,667 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 23:17:30,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:18:01,370 WARN L207 SmtUtils]: Spent 7.38 s on a formula simplification that was a NOOP. DAG size: 12 [2021-10-28 23:18:15,376 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0) c_~ui~0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-10-28 23:18:17,405 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0) c_~ui~0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-10-28 23:18:17,406 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 23:18:17,407 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:18:17,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723908588] [2021-10-28 23:18:17,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723908588] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:17,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:17,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 23:18:17,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200680913] [2021-10-28 23:18:17,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:18:17,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:18:17,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:18:17,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=6, NotChecked=14, Total=90 [2021-10-28 23:18:17,442 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 23:18:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:39,065 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-10-28 23:18:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:18:39,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 7 [2021-10-28 23:18:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:18:39,077 INFO L225 Difference]: With dead ends: 37 [2021-10-28 23:18:39,077 INFO L226 Difference]: Without dead ends: 15 [2021-10-28 23:18:39,080 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=28, Invalid=60, Unknown=6, NotChecked=16, Total=110 [2021-10-28 23:18:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-28 23:18:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2021-10-28 23:18:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 23:18:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-28 23:18:39,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2021-10-28 23:18:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:18:39,113 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-28 23:18:39,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 23:18:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-28 23:18:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:18:39,115 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:18:39,115 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:39,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:39,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:18:39,319 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:18:39,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash 729433995, now seen corresponding path program 1 times [2021-10-28 23:18:39,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:18:39,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96317910] [2021-10-28 23:18:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:39,323 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:18:39,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:18:39,327 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:18:39,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:18:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:45,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:18:45,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:33,995 WARN L207 SmtUtils]: Spent 15.42 s on a formula simplification that was a NOOP. DAG size: 29 [2021-10-28 23:20:11,410 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (= |c_ULTIMATE.start_y_#res| (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (let ((.cse5 (fp.add c_currentRoundingMode .cse6 .cse6))) (let ((.cse0 (fp.add c_currentRoundingMode .cse5 .cse6))) (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse1 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse2 (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~yc~0 .cse0)) (.cse3 (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~yc~0 .cse5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 .cse2) .cse4) .cse4)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode .cse4 .cse4) (fp.sub c_currentRoundingMode .cse2 .cse3)))))))))) (= c_ULTIMATE.start_main_~yc~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-28 23:20:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-28 23:20:11,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:20:26,106 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~yc~0 (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-10-28 23:20:40,888 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:20:40,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96317910] [2021-10-28 23:20:40,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: line 12441 column 7: push canceled [2021-10-28 23:20:40,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1060945307] [2021-10-28 23:20:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:20:40,891 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:20:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:20:40,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:20:40,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-28 23:20:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:20:56,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:20:56,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:20:56,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Function ~yn~0 is already defined. [2021-10-28 23:20:56,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671795737] [2021-10-28 23:20:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:20:56,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:20:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:56,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:20:56,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:23:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:16,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 23:23:16,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:16,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Function ~yn~0 is already defined. [2021-10-28 23:23:16,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:16,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:23:16,129 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:23:16,130 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:23:16,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:23:16,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:23:16,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-10-28 23:23:16,770 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2021-10-28 23:23:16,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 137 [2021-10-28 23:23:16,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:23:16,871 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:23:16,875 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:23:16,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:23:16 BoogieIcfgContainer [2021-10-28 23:23:16,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:23:16,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:23:16,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:23:16,894 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:23:16,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:25" (3/4) ... [2021-10-28 23:23:16,909 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:23:16,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:23:16,911 INFO L168 Benchmark]: Toolchain (without parser) took 356326.90 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.5 MB in the beginning and 76.7 MB in the end (delta: -34.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,912 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:23:16,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.53 ms. Allocated memory is still 77.6 MB. Free memory was 42.3 MB in the beginning and 53.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.04 ms. Allocated memory is still 77.6 MB. Free memory was 53.7 MB in the beginning and 61.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,915 INFO L168 Benchmark]: Boogie Preprocessor took 68.62 ms. Allocated memory is still 77.6 MB. Free memory was 61.4 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:23:16,915 INFO L168 Benchmark]: RCFGBuilder took 4510.21 ms. Allocated memory is still 77.6 MB. Free memory was 60.1 MB in the beginning and 49.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,917 INFO L168 Benchmark]: TraceAbstraction took 351335.85 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 49.4 MB in the beginning and 37.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,917 INFO L168 Benchmark]: Witness Printer took 16.22 ms. Allocated memory is still 94.4 MB. Free memory was 37.4 MB in the beginning and 76.7 MB in the end (delta: -39.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:23:16,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.53 ms. Allocated memory is still 77.6 MB. Free memory was 42.3 MB in the beginning and 53.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.04 ms. Allocated memory is still 77.6 MB. Free memory was 53.7 MB in the beginning and 61.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.62 ms. Allocated memory is still 77.6 MB. Free memory was 61.4 MB in the beginning and 60.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 4510.21 ms. Allocated memory is still 77.6 MB. Free memory was 60.1 MB in the beginning and 49.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 351335.85 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 49.4 MB in the beginning and 37.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * Witness Printer took 16.22 ms. Allocated memory is still 94.4 MB. Free memory was 37.4 MB in the beginning and 76.7 MB in the end (delta: -39.3 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, 0.0s 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 [L18] yn += ui [L19] return yn; [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 [L39] COND TRUE i<120 [L18] yn += ui [L19] return yn; [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L8] COND FALSE !(!(cond)) [L39] i++ [L39] COND TRUE i<120 [L18] yn += ui [L19] return yn; [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 351.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 30 SDslu, 47 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 30.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 8.5s SatisfiabilityAnalysisTime, 164.5s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 29 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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 23:23:17,174 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-28 23:23:17,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc081af-45d8-4d84-ac7d-6ab6d9d9b162/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...