./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y --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 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:51:22,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:51:22,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:51:22,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:51:22,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:51:22,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:51:22,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:51:22,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:51:22,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:51:22,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:51:22,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:51:22,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:51:22,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:51:22,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:51:22,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:51:22,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:51:22,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:51:22,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:51:22,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:51:22,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:51:22,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:51:22,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:51:22,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:51:22,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:51:22,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:51:22,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:51:22,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:51:22,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:51:22,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:51:22,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:51:22,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:51:22,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:51:22,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:51:22,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:51:22,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:51:22,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:51:22,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:51:22,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:51:22,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:51:22,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:51:22,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:51:22,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:51:22,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:51:22,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:51:22,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:51:22,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:51:22,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:51:22,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:51:22,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:51:22,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:51:22,298 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:51:22,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:51:22,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:51:22,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:51:22,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:51:22,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:51:22,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:51:22,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:51:22,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:51:22,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:51:22,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:51:22,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:22,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:51:22,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:51:22,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:51:22,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:51:22,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:51:22,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:51:22,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:51:22,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:51:22,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:51:22,309 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 [2021-11-13 17:51:22,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:51:22,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:51:22,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:51:22,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:51:22,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:51:22,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-11-13 17:51:22,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/0ec171147/55e5e27847604ad69765aea4394eb1ba/FLAGf7f1945ba [2021-11-13 17:51:23,201 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:51:23,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-11-13 17:51:23,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/0ec171147/55e5e27847604ad69765aea4394eb1ba/FLAGf7f1945ba [2021-11-13 17:51:23,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/0ec171147/55e5e27847604ad69765aea4394eb1ba [2021-11-13 17:51:23,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:51:23,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:51:23,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:23,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:51:23,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:51:23,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:23" (1/1) ... [2021-11-13 17:51:23,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f49eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:23, skipping insertion in model container [2021-11-13 17:51:23,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:23" (1/1) ... [2021-11-13 17:51:23,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:51:23,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:51:23,949 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-11-13 17:51:23,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:23,968 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:51:24,046 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-11-13 17:51:24,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:24,064 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:51:24,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24 WrapperNode [2021-11-13 17:51:24,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:24,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:24,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:51:24,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:51:24,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:24,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:51:24,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:51:24,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:51:24,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:51:24,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:51:24,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:51:24,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:51:24,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (1/1) ... [2021-11-13 17:51:24,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:24,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:51:24,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:51:24,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:51:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:51:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:51:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 17:51:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:51:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-13 17:51:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-13 17:51:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 17:51:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-13 17:51:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-13 17:51:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:51:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:51:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:51:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-13 17:51:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:51:25,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:51:25,038 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-13 17:51:25,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:51:25 BoogieIcfgContainer [2021-11-13 17:51:25,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:51:25,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:51:25,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:51:25,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:51:25,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:51:23" (1/3) ... [2021-11-13 17:51:25,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a483def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:51:25, skipping insertion in model container [2021-11-13 17:51:25,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:24" (2/3) ... [2021-11-13 17:51:25,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a483def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:51:25, skipping insertion in model container [2021-11-13 17:51:25,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:51:25" (3/3) ... [2021-11-13 17:51:25,051 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2021-11-13 17:51:25,057 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:51:25,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:51:25,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:51:25,148 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 [2021-11-13 17:51:25,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:51:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 17:51:25,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:25,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:25,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash -233161701, now seen corresponding path program 1 times [2021-11-13 17:51:25,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:25,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220849852] [2021-11-13 17:51:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:25,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:25,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:25,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:25,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220849852] [2021-11-13 17:51:25,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220849852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:25,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:25,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:51:25,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696893320] [2021-11-13 17:51:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:25,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:51:25,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:51:25,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:51:25,593 INFO L87 Difference]: Start difference. First operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-11-13 17:51:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:25,672 INFO L93 Difference]: Finished difference Result 204 states and 332 transitions. [2021-11-13 17:51:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:51:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) Word has length 15 [2021-11-13 17:51:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:25,693 INFO L225 Difference]: With dead ends: 204 [2021-11-13 17:51:25,693 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 17:51:25,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:51:25,706 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:25,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 9.63ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:51:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 17:51:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 17:51:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2021-11-13 17:51:25,792 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 15 [2021-11-13 17:51:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:25,792 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2021-11-13 17:51:25,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-11-13 17:51:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2021-11-13 17:51:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 17:51:25,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:25,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:25,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:51:25,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -114752879, now seen corresponding path program 1 times [2021-11-13 17:51:25,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:25,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742364648] [2021-11-13 17:51:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:25,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:25,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:51:25,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742364648] [2021-11-13 17:51:25,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742364648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:25,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:25,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:51:25,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822042768] [2021-11-13 17:51:25,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:25,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:51:25,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:51:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:51:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:25,995 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-13 17:51:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:26,043 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2021-11-13 17:51:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:51:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-13 17:51:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:26,047 INFO L225 Difference]: With dead ends: 187 [2021-11-13 17:51:26,048 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 17:51:26,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:26,051 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.15ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:26,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 3.41ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 11.15ms Time] [2021-11-13 17:51:26,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 17:51:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 17:51:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2021-11-13 17:51:26,065 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 18 [2021-11-13 17:51:26,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:26,066 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2021-11-13 17:51:26,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-13 17:51:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2021-11-13 17:51:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 17:51:26,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:26,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:26,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:51:26,068 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:26,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2086328612, now seen corresponding path program 1 times [2021-11-13 17:51:26,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:51:26,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924319894] [2021-11-13 17:51:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:26,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:51:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:51:26,280 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:51:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:51:26,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:51:26,470 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 17:51:26,472 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:51:26,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:51:26,478 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 17:51:26,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:51:26,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:51:26 BoogieIcfgContainer [2021-11-13 17:51:26,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:51:26,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:51:26,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:51:26,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:51:26,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:51:25" (3/4) ... [2021-11-13 17:51:26,602 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:51:26,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:51:26,604 INFO L158 Benchmark]: Toolchain (without parser) took 3045.23ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 52.1MB in the beginning and 79.2MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:51:26,605 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:51:26,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.92ms. Allocated memory is still 94.4MB. Free memory was 51.9MB in the beginning and 62.6MB in the end (delta: -10.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:51:26,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.42ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 60.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:51:26,615 INFO L158 Benchmark]: Boogie Preprocessor took 100.31ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 57.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:51:26,618 INFO L158 Benchmark]: RCFGBuilder took 791.91ms. Allocated memory is still 94.4MB. Free memory was 57.3MB in the beginning and 32.9MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 17:51:26,619 INFO L158 Benchmark]: TraceAbstraction took 1554.27ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 32.4MB in the beginning and 79.6MB in the end (delta: -47.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-13 17:51:26,620 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 119.5MB. Free memory was 79.6MB in the beginning and 79.2MB in the end (delta: 354.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:51:26,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.92ms. Allocated memory is still 94.4MB. Free memory was 51.9MB in the beginning and 62.6MB in the end (delta: -10.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.42ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 60.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.31ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 57.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 791.91ms. Allocated memory is still 94.4MB. Free memory was 57.3MB in the beginning and 32.9MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1554.27ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 32.4MB in the beginning and 79.6MB in the end (delta: -47.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 119.5MB. Free memory was 79.6MB in the beginning and 79.2MB in the end (delta: 354.2kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 288]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L278] double x = __VERIFIER_nondet_double(); [L279] double y = 1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \result=-2, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=2147483647, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isfinite_double(x)=-2, isfinite_double(x) && isinf_double(y)=1, isinf_double(y)=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != pi_o_2 VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L288] reach_error() VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 11.15ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 416 SdHoareTripleChecker+Invalid, 9.06ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 283 mSDtfsCounter, 5 mSolverCounterSat, 13.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 17:51:26,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y --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 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:51:29,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:51:29,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:51:29,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:51:29,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:51:29,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:51:29,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:51:29,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:51:29,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:51:29,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:51:29,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:51:29,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:51:29,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:51:29,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:51:29,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:51:29,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:51:29,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:51:29,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:51:29,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:51:29,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:51:29,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:51:29,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:51:29,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:51:29,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:51:29,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:51:29,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:51:29,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:51:29,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:51:29,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:51:29,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:51:29,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:51:29,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:51:29,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:51:29,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:51:29,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:51:29,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:51:29,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:51:29,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:51:29,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:51:29,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:51:29,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:51:29,500 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 17:51:29,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:51:29,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:51:29,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:51:29,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:51:29,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:51:29,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:51:29,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:51:29,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:51:29,536 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:51:29,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:51:29,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:51:29,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:51:29,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:51:29,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:51:29,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:51:29,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:51:29,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:51:29,539 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:51:29,540 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:51:29,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:51:29,540 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:51:29,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:51:29,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:51:29,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:51:29,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:51:29,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:29,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:51:29,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:51:29,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:51:29,543 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:51:29,543 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:51:29,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:51:29,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:51:29,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:51:29,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:51:29,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:51:29,545 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 [2021-11-13 17:51:29,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:51:30,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:51:30,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:51:30,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:51:30,026 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:51:30,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-11-13 17:51:30,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/f5876e6c8/92e16e56999f40f099b0f9551e14eac9/FLAG850c11672 [2021-11-13 17:51:30,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:51:30,775 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-11-13 17:51:30,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/f5876e6c8/92e16e56999f40f099b0f9551e14eac9/FLAG850c11672 [2021-11-13 17:51:31,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/data/f5876e6c8/92e16e56999f40f099b0f9551e14eac9 [2021-11-13 17:51:31,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:51:31,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:51:31,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:31,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:51:31,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:51:31,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@938621d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31, skipping insertion in model container [2021-11-13 17:51:31,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:51:31,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:51:31,430 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-11-13 17:51:31,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:31,449 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:51:31,544 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_fbf2affd-803e-410e-9b00-bf3220f5b49d/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-11-13 17:51:31,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:31,585 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:51:31,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31 WrapperNode [2021-11-13 17:51:31,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:31,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:31,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:51:31,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:51:31,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:31,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:51:31,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:51:31,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:51:31,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:51:31,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:51:31,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:51:31,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:51:31,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (1/1) ... [2021-11-13 17:51:31,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:31,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:51:31,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:51:31,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:51:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 17:51:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-13 17:51:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 17:51:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:51:31,925 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-13 17:51:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-13 17:51:31,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-13 17:51:31,929 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-13 17:51:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-13 17:51:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 17:51:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:51:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:51:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 17:51:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:51:54,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:51:54,946 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-13 17:51:54,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:51:54 BoogieIcfgContainer [2021-11-13 17:51:54,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:51:54,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:51:54,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:51:54,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:51:54,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:51:31" (1/3) ... [2021-11-13 17:51:54,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372d04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:51:54, skipping insertion in model container [2021-11-13 17:51:54,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:31" (2/3) ... [2021-11-13 17:51:54,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372d04c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:51:54, skipping insertion in model container [2021-11-13 17:51:54,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:51:54" (3/3) ... [2021-11-13 17:51:54,959 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2021-11-13 17:51:54,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:51:54,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:51:55,018 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:51:55,026 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 [2021-11-13 17:51:55,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:51:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 17:51:55,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:55,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:55,054 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash -233161701, now seen corresponding path program 1 times [2021-11-13 17:51:55,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:55,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397688407] [2021-11-13 17:51:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:55,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:55,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:55,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:55,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:51:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:55,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 17:51:55,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:55,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:56,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:56,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397688407] [2021-11-13 17:51:56,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397688407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:56,215 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:56,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:51:56,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482389316] [2021-11-13 17:51:56,218 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:56,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:51:56,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:51:56,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:51:56,266 INFO L87 Difference]: Start difference. First operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-11-13 17:51:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:56,303 INFO L93 Difference]: Finished difference Result 204 states and 332 transitions. [2021-11-13 17:51:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:51:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) Word has length 15 [2021-11-13 17:51:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:56,317 INFO L225 Difference]: With dead ends: 204 [2021-11-13 17:51:56,318 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 17:51:56,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:51:56,327 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:56,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 2.34ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:51:56,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 17:51:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 17:51:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2021-11-13 17:51:56,389 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 15 [2021-11-13 17:51:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:56,389 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2021-11-13 17:51:56,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-11-13 17:51:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2021-11-13 17:51:56,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 17:51:56,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:56,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:56,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:56,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:56,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:56,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash -114752879, now seen corresponding path program 1 times [2021-11-13 17:51:56,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:56,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597144117] [2021-11-13 17:51:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:56,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:56,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:56,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:56,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:51:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:57,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:51:57,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:57,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:57,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:57,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597144117] [2021-11-13 17:51:57,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597144117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:57,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:57,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 17:51:57,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844840487] [2021-11-13 17:51:57,959 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:57,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:51:57,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:51:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:57,963 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-13 17:51:58,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:58,173 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2021-11-13 17:51:58,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:51:58,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-13 17:51:58,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:58,178 INFO L225 Difference]: With dead ends: 187 [2021-11-13 17:51:58,178 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 17:51:58,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:51:58,182 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.82ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:58,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 3.73ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 181.82ms Time] [2021-11-13 17:51:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 17:51:58,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 17:51:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:51:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2021-11-13 17:51:58,200 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 18 [2021-11-13 17:51:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:58,201 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2021-11-13 17:51:58,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-13 17:51:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2021-11-13 17:51:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 17:51:58,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:58,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:51:58,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:58,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:58,413 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:51:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:58,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2086328612, now seen corresponding path program 1 times [2021-11-13 17:51:58,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:58,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138319788] [2021-11-13 17:51:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:58,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:58,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:58,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:58,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:51:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:59,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-13 17:51:59,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:52:04,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2021-11-13 17:52:07,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:52:07,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 90 [2021-11-13 17:52:08,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-13 17:52:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:16,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:52:20,853 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:52:20,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 108 [2021-11-13 17:52:21,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:52:21,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 110 [2021-11-13 17:52:21,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:52:21,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 94 [2021-11-13 17:52:21,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-13 17:52:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:38,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:52:38,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138319788] [2021-11-13 17:52:38,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138319788] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:38,298 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:38,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-13 17:52:38,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258984603] [2021-11-13 17:52:38,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:38,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 17:52:38,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:52:38,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 17:52:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:52:38,301 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 22 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 22 states have internal predecessors, (40), 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) [2021-11-13 17:52:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:39,585 INFO L93 Difference]: Finished difference Result 103 states and 141 transitions. [2021-11-13 17:52:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:52:39,598 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 22 states have internal predecessors, (40), 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 22 [2021-11-13 17:52:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:39,601 INFO L225 Difference]: With dead ends: 103 [2021-11-13 17:52:39,601 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 17:52:39,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:52:39,604 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 16 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1184.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 1227.32ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:39,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 1679 Invalid, 95 Unknown, 0 Unchecked, 10.39ms Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 70 Unchecked, 1227.32ms Time] [2021-11-13 17:52:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 17:52:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-13 17:52:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 92 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:52:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 137 transitions. [2021-11-13 17:52:39,620 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 137 transitions. Word has length 22 [2021-11-13 17:52:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:39,621 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 137 transitions. [2021-11-13 17:52:39,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 22 states have internal predecessors, (40), 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) [2021-11-13 17:52:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 137 transitions. [2021-11-13 17:52:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 17:52:39,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:39,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:39,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:52:39,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:52:39,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:39,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1752843547, now seen corresponding path program 1 times [2021-11-13 17:52:39,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:52:39,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552338526] [2021-11-13 17:52:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:39,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:52:39,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:52:39,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:52:39,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 17:52:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:40,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:52:40,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:52:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:42,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:52:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:46,582 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:52:46,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552338526] [2021-11-13 17:52:46,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552338526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:46,583 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:46,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 17:52:46,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737862341] [2021-11-13 17:52:46,583 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:46,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:52:46,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:52:46,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:52:46,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:52:46,585 INFO L87 Difference]: Start difference. First operand 99 states and 137 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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) [2021-11-13 17:52:46,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:46,611 INFO L93 Difference]: Finished difference Result 169 states and 238 transitions. [2021-11-13 17:52:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:52:46,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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 27 [2021-11-13 17:52:46,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:46,620 INFO L225 Difference]: With dead ends: 169 [2021-11-13 17:52:46,626 INFO L226 Difference]: Without dead ends: 93 [2021-11-13 17:52:46,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:52:46,629 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 2 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.15ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:46,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 803 Invalid, 16 Unknown, 0 Unchecked, 3.05ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 16 Unchecked, 0.15ms Time] [2021-11-13 17:52:46,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-13 17:52:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-13 17:52:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:52:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 126 transitions. [2021-11-13 17:52:46,661 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 126 transitions. Word has length 27 [2021-11-13 17:52:46,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:46,662 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 126 transitions. [2021-11-13 17:52:46,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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) [2021-11-13 17:52:46,663 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 126 transitions. [2021-11-13 17:52:46,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 17:52:46,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:46,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:46,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:52:46,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:52:46,889 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:46,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:46,890 INFO L85 PathProgramCache]: Analyzing trace with hash -144061543, now seen corresponding path program 1 times [2021-11-13 17:52:46,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:52:46,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946873145] [2021-11-13 17:52:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:46,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:52:46,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:52:46,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:52:46,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 17:52:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:47,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:52:47,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:52:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:49,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:52:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:51,733 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:52:51,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946873145] [2021-11-13 17:52:51,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946873145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:51,734 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:51,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 17:52:51,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084025346] [2021-11-13 17:52:51,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:51,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:52:51,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:52:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:52:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:52:51,736 INFO L87 Difference]: Start difference. First operand 93 states and 126 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2021-11-13 17:52:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:51,757 INFO L93 Difference]: Finished difference Result 113 states and 148 transitions. [2021-11-13 17:52:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:52:51,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 27 [2021-11-13 17:52:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:51,763 INFO L225 Difference]: With dead ends: 113 [2021-11-13 17:52:51,763 INFO L226 Difference]: Without dead ends: 108 [2021-11-13 17:52:51,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:52:51,767 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 96 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.09ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:51,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 540 Invalid, 10 Unknown, 0 Unchecked, 2.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.09ms Time] [2021-11-13 17:52:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-13 17:52:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2021-11-13 17:52:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:52:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 125 transitions. [2021-11-13 17:52:51,792 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 125 transitions. Word has length 27 [2021-11-13 17:52:51,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:51,792 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 125 transitions. [2021-11-13 17:52:51,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2021-11-13 17:52:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 125 transitions. [2021-11-13 17:52:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 17:52:51,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:51,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:51,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:52:52,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:52:52,018 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:52,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash -142214501, now seen corresponding path program 1 times [2021-11-13 17:52:52,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:52:52,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477459556] [2021-11-13 17:52:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:52,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:52:52,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:52:52,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:52:52,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 17:52:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:52,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:52:52,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:52:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:52:58,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:53:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:16,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:53:16,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477459556] [2021-11-13 17:53:16,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477459556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:16,318 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:16,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 17:53:16,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489682603] [2021-11-13 17:53:16,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:16,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:53:16,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:53:16,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:53:16,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:53:16,320 INFO L87 Difference]: Start difference. First operand 93 states and 125 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-11-13 17:53:22,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:26,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:28,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:30,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:34,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:38,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:43,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:45,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:48,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:50,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:53,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:56,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:59,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:02,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:05,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:06,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:06,041 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2021-11-13 17:54:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:54:06,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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 27 [2021-11-13 17:54:06,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:06,045 INFO L225 Difference]: With dead ends: 100 [2021-11-13 17:54:06,045 INFO L226 Difference]: Without dead ends: 94 [2021-11-13 17:54:06,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:54:06,047 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 95 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43543.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.51ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46092.15ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:06,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 459 Invalid, 154 Unknown, 0 Unchecked, 4.51ms Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 11 Unknown, 0 Unchecked, 46092.15ms Time] [2021-11-13 17:54:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-13 17:54:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-13 17:54:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 84 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 17:54:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2021-11-13 17:54:06,083 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 27 [2021-11-13 17:54:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:06,083 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2021-11-13 17:54:06,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-11-13 17:54:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2021-11-13 17:54:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 17:54:06,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:06,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:06,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:54:06,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:54:06,309 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash -489049033, now seen corresponding path program 1 times [2021-11-13 17:54:06,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:54:06,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137758035] [2021-11-13 17:54:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:06,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:54:06,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:54:06,312 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:54:06,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 17:54:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:54:06,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:54:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:09,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:54:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:14,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:54:14,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137758035] [2021-11-13 17:54:14,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137758035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:14,061 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:14,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 17:54:14,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224394665] [2021-11-13 17:54:14,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:14,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:54:14,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:54:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:54:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:54:14,064 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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) [2021-11-13 17:54:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:15,039 INFO L93 Difference]: Finished difference Result 130 states and 172 transitions. [2021-11-13 17:54:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:54:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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 28 [2021-11-13 17:54:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:15,060 INFO L225 Difference]: With dead ends: 130 [2021-11-13 17:54:15,060 INFO L226 Difference]: Without dead ends: 70 [2021-11-13 17:54:15,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:54:15,062 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 20 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 772.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 786.07ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:15,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 357 Invalid, 24 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 12 Unchecked, 786.07ms Time] [2021-11-13 17:54:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-13 17:54:15,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-13 17:54:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 65 states have internal predecessors, (83), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:54:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2021-11-13 17:54:15,071 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 28 [2021-11-13 17:54:15,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:15,072 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2021-11-13 17:54:15,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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) [2021-11-13 17:54:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2021-11-13 17:54:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 17:54:15,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:15,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:15,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-13 17:54:15,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:54:15,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:15,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:15,284 INFO L85 PathProgramCache]: Analyzing trace with hash -511928521, now seen corresponding path program 1 times [2021-11-13 17:54:15,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:54:15,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860954621] [2021-11-13 17:54:15,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:15,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:54:15,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:54:15,286 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:54:15,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 17:54:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:15,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 17:54:15,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:54:21,446 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_29| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_30| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_30|) |c_ULTIMATE.start___ieee754_atan2_~hx~1#1|) (not (= (_ bv0 32) (bvlshr (bvadd (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_29|)) (_ bv2148532224 32)) (_ bv31 32)))) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_30|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_30|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_30|)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_29|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_29|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_29|))))) is different from true [2021-11-13 17:54:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:30,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:54:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:46,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:54:46,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860954621] [2021-11-13 17:54:46,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860954621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:46,651 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:46,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-13 17:54:46,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399817687] [2021-11-13 17:54:46,651 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:46,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 17:54:46,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:54:46,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 17:54:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=224, Unknown=2, NotChecked=30, Total=306 [2021-11-13 17:54:46,653 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 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) [2021-11-13 17:54:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:55,424 INFO L93 Difference]: Finished difference Result 77 states and 94 transitions. [2021-11-13 17:54:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:54:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 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 28 [2021-11-13 17:54:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:55,426 INFO L225 Difference]: With dead ends: 77 [2021-11-13 17:54:55,426 INFO L226 Difference]: Without dead ends: 64 [2021-11-13 17:54:55,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=59, Invalid=285, Unknown=2, NotChecked=34, Total=380 [2021-11-13 17:54:55,428 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 68.68ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:55,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 692 Invalid, 88 Unknown, 0 Unchecked, 2.25ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 85 Unchecked, 68.68ms Time] [2021-11-13 17:54:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-13 17:54:55,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-13 17:54:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:54:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2021-11-13 17:54:55,436 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 28 [2021-11-13 17:54:55,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:55,437 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2021-11-13 17:54:55,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 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) [2021-11-13 17:54:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2021-11-13 17:54:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 17:54:55,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:55,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:55,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:54:55,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:54:55,657 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1779988844, now seen corresponding path program 1 times [2021-11-13 17:54:55,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:54:55,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644737178] [2021-11-13 17:54:55,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:55,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:54:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:54:55,660 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:54:55,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 17:54:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:56,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:54:56,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:54:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:58,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:55:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:01,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:55:01,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644737178] [2021-11-13 17:55:01,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644737178] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:01,319 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:01,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 17:55:01,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977893969] [2021-11-13 17:55:01,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:01,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:55:01,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:55:01,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:55:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:55:01,321 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2021-11-13 17:55:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:01,329 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2021-11-13 17:55:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:55:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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 29 [2021-11-13 17:55:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:01,331 INFO L225 Difference]: With dead ends: 73 [2021-11-13 17:55:01,331 INFO L226 Difference]: Without dead ends: 68 [2021-11-13 17:55:01,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:55:01,333 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 5 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.01ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:01,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 387 Invalid, 6 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.01ms Time] [2021-11-13 17:55:01,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-13 17:55:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2021-11-13 17:55:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:55:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2021-11-13 17:55:01,341 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 29 [2021-11-13 17:55:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:01,342 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2021-11-13 17:55:01,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2021-11-13 17:55:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2021-11-13 17:55:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 17:55:01,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:01,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:01,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:01,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:55:01,557 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:55:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:01,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1781835886, now seen corresponding path program 1 times [2021-11-13 17:55:01,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:55:01,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019748148] [2021-11-13 17:55:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:01,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:55:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:55:01,559 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:55:01,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 17:55:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:01,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:55:01,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:08,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:55:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:27,354 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:55:27,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019748148] [2021-11-13 17:55:27,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019748148] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:27,354 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:27,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 17:55:27,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658471354] [2021-11-13 17:55:27,355 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:27,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:55:27,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:55:27,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:55:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:55:27,356 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-11-13 17:55:38,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:41,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:43,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:46,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:49,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:52,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:55,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:55,648 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2021-11-13 17:55:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:55:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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 29 [2021-11-13 17:55:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:55,898 INFO L225 Difference]: With dead ends: 71 [2021-11-13 17:55:55,898 INFO L226 Difference]: Without dead ends: 61 [2021-11-13 17:55:55,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:55:55,900 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 80 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22855.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.22ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24397.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:55,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 335 Invalid, 100 Unknown, 0 Unchecked, 2.22ms Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 7 Unknown, 0 Unchecked, 24397.90ms Time] [2021-11-13 17:55:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-13 17:55:55,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2021-11-13 17:55:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:55:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2021-11-13 17:55:55,907 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 29 [2021-11-13 17:55:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:55,908 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2021-11-13 17:55:55,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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) [2021-11-13 17:55:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2021-11-13 17:55:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:55:55,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:55,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:55,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:56,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:55:56,136 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:55:56,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:56,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1918665192, now seen corresponding path program 1 times [2021-11-13 17:55:56,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:55:56,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351974258] [2021-11-13 17:55:56,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:56,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:55:56,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:55:56,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:55:56,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 17:55:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:57,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:55:57,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:58,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-13 17:56:28,378 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:56:28,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 65 [2021-11-13 17:56:28,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-13 17:56:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:56:33,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:56:42,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:56:42,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 77 [2021-11-13 17:56:42,854 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:56:42,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 79 [2021-11-13 17:56:43,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2021-11-13 17:56:54,471 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:56:54,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351974258] [2021-11-13 17:56:54,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_33|] [2021-11-13 17:56:54,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [788289531] [2021-11-13 17:56:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:56:54,472 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 17:56:54,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 [2021-11-13 17:56:54,480 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 17:56:54,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-13 17:56:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:58,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:56:58,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:56:59,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-13 17:57:26,380 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:26,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 65 [2021-11-13 17:57:26,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-13 17:57:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:57:31,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:57:36,702 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:36,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 83 [2021-11-13 17:57:36,900 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:36,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 85 [2021-11-13 17:57:37,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2021-11-13 17:57:58,283 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:58,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 70 [2021-11-13 17:57:58,486 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 17:57:58,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 72 [2021-11-13 17:57:58,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-13 17:58:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:58:37,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [788289531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:58:37,950 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:58:37,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-13 17:58:37,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332246938] [2021-11-13 17:58:37,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:58:37,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:58:37,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:58:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:58:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:58:37,952 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:58:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:58:37,990 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2021-11-13 17:58:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:58:37,992 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2021-11-13 17:58:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:58:37,993 INFO L225 Difference]: With dead ends: 65 [2021-11-13 17:58:37,993 INFO L226 Difference]: Without dead ends: 58 [2021-11-13 17:58:37,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:58:37,994 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 8 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 31.61ms IncrementalHoareTripleChecker+Time [2021-11-13 17:58:37,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 410 Invalid, 76 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 75 Unchecked, 31.61ms Time] [2021-11-13 17:58:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-13 17:58:38,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-13 17:58:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:58:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-11-13 17:58:38,001 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 35 [2021-11-13 17:58:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:58:38,002 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-11-13 17:58:38,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:58:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2021-11-13 17:58:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:58:38,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:58:38,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:58:38,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:58:38,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-13 17:58:38,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt [2021-11-13 17:58:38,417 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:58:38,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:58:38,418 INFO L85 PathProgramCache]: Analyzing trace with hash -521190685, now seen corresponding path program 1 times [2021-11-13 17:58:38,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:58:38,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233097238] [2021-11-13 17:58:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:58:38,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:58:38,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:58:38,420 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:58:38,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 17:58:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:58:38,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:58:38,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:58:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:58:42,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:58:48,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:58:48,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233097238] [2021-11-13 17:58:48,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_skolemized_q#valueAsBitvector_48|] [2021-11-13 17:58:48,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [69868463] [2021-11-13 17:58:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:58:48,584 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 17:58:48,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 [2021-11-13 17:58:48,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 17:58:48,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-13 17:58:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:58:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:58:51,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:58:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:58:54,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:59:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:59:04,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [69868463] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:59:04,942 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:59:04,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-13 17:59:04,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759973717] [2021-11-13 17:59:04,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:59:04,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:59:04,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:59:04,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:59:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:59:04,944 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:59:04,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:59:04,988 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2021-11-13 17:59:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:59:04,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2021-11-13 17:59:04,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:59:04,990 INFO L225 Difference]: With dead ends: 69 [2021-11-13 17:59:04,990 INFO L226 Difference]: Without dead ends: 55 [2021-11-13 17:59:04,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:59:04,992 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 21 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 35.17ms IncrementalHoareTripleChecker+Time [2021-11-13 17:59:04,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 487 Invalid, 59 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 58 Unchecked, 35.17ms Time] [2021-11-13 17:59:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-13 17:59:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-13 17:59:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.14) internal successors, (57), 50 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:59:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2021-11-13 17:59:04,999 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 35 [2021-11-13 17:59:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:59:05,000 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2021-11-13 17:59:05,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:59:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2021-11-13 17:59:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 17:59:05,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:59:05,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:59:05,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:59:05,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:59:05,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt [2021-11-13 17:59:05,425 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:59:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:59:05,425 INFO L85 PathProgramCache]: Analyzing trace with hash 670836306, now seen corresponding path program 1 times [2021-11-13 17:59:05,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:59:05,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143059439] [2021-11-13 17:59:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:59:05,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:59:05,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:59:05,427 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:59:05,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf2affd-803e-410e-9b00-bf3220f5b49d/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 17:59:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:59:06,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-13 17:59:06,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:59:10,274 INFO L354 Elim1Store]: treesize reduction 358, result has 15.4 percent of original size [2021-11-13 17:59:10,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 396 treesize of output 437 [2021-11-13 18:00:08,935 INFO L354 Elim1Store]: treesize reduction 301, result has 15.9 percent of original size [2021-11-13 18:00:08,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 236 treesize of output 275 [2021-11-13 18:00:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:00:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:00:09,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:00:09,777 INFO L354 Elim1Store]: treesize reduction 52, result has 24.6 percent of original size [2021-11-13 18:00:09,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 262 treesize of output 277 [2021-11-13 18:02:38,020 INFO L354 Elim1Store]: treesize reduction 376, result has 14.7 percent of original size [2021-11-13 18:02:38,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 306 treesize of output 351 [2021-11-13 18:02:38,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:02:38,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:02:39,685 INFO L354 Elim1Store]: treesize reduction 94, result has 29.3 percent of original size [2021-11-13 18:02:39,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 323 treesize of output 352 [2021-11-13 18:05:10,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:05:10,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:10,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-13 18:05:10,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:05:12,116 INFO L354 Elim1Store]: treesize reduction 94, result has 29.3 percent of original size [2021-11-13 18:05:12,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 307 treesize of output 336 [2021-11-13 18:05:14,970 INFO L354 Elim1Store]: treesize reduction 376, result has 14.7 percent of original size [2021-11-13 18:05:14,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 315 treesize of output 360