./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC --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 ab53d3429947c30ff169bac7bc42ee99cd27cfaa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:30:23,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:23,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:23,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:23,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:23,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:23,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:23,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:23,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:23,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:23,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:23,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:23,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:23,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:23,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:23,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:23,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:23,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:23,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:23,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:23,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:23,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:23,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:23,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:23,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:23,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:23,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:23,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:23,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:23,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:23,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:23,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:23,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:23,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:23,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:23,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:23,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:23,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:23,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:23,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:23,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:23,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:30:23,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:23,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:23,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:23,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:23,293 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:23,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:23,294 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:23,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:23,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:23,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:23,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:23,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:23,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:23,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:23,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:23,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:23,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:23,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:23,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:23,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:23,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:23,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:23,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:23,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:23,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:23,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:23,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:23,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:23,301 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_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab53d3429947c30ff169bac7bc42ee99cd27cfaa [2021-10-11 00:30:23,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:23,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:23,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:23,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:23,683 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:23,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2021-10-11 00:30:23,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/data/46ac63b2d/716f5c76119f4c808e0b548169ebb3d6/FLAG1f1fae50d [2021-10-11 00:30:24,299 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:24,307 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2021-10-11 00:30:24,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/data/46ac63b2d/716f5c76119f4c808e0b548169ebb3d6/FLAG1f1fae50d [2021-10-11 00:30:24,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/data/46ac63b2d/716f5c76119f4c808e0b548169ebb3d6 [2021-10-11 00:30:24,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:24,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:24,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:24,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:24,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:24,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:24" (1/1) ... [2021-10-11 00:30:24,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755cc053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:24, skipping insertion in model container [2021-10-11 00:30:24,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:24" (1/1) ... [2021-10-11 00:30:24,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:24,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:24,932 WARN L226 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_78587e30-57cd-40b8-b99b-f56671a2b6f1/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1281,1294] [2021-10-11 00:30:25,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:25,095 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:25,109 WARN L226 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_78587e30-57cd-40b8-b99b-f56671a2b6f1/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1281,1294] [2021-10-11 00:30:25,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:25,224 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25 WrapperNode [2021-10-11 00:30:25,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:25,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:25,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:25,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:25,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:25,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:25,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:25,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:25,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... [2021-10-11 00:30:25,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:25,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:25,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:25,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:25,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:26,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:26,492 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-10-11 00:30:26,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:26 BoogieIcfgContainer [2021-10-11 00:30:26,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:26,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:26,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:26,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:26,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:24" (1/3) ... [2021-10-11 00:30:26,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82b1acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:26, skipping insertion in model container [2021-10-11 00:30:26,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:25" (2/3) ... [2021-10-11 00:30:26,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82b1acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:26, skipping insertion in model container [2021-10-11 00:30:26,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:26" (3/3) ... [2021-10-11 00:30:26,505 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2021-10-11 00:30:26,524 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:26,528 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:30:26,539 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:30:26,583 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:26,583 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:26,583 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:26,583 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:26,584 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:26,584 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:26,584 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:26,584 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2021-10-11 00:30:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:30:26,607 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:26,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:26,608 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:26,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2021-10-11 00:30:26,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:26,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512930071] [2021-10-11 00:30:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:26,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512930071] [2021-10-11 00:30:26,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:26,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:26,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051856427] [2021-10-11 00:30:26,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:30:26,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:26,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:26,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:26,916 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2021-10-11 00:30:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:26,980 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2021-10-11 00:30:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:26,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:30:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:27,000 INFO L225 Difference]: With dead ends: 228 [2021-10-11 00:30:27,000 INFO L226 Difference]: Without dead ends: 113 [2021-10-11 00:30:27,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-11 00:30:27,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-11 00:30:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-10-11 00:30:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2021-10-11 00:30:27,074 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2021-10-11 00:30:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:27,075 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2021-10-11 00:30:27,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:30:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2021-10-11 00:30:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:30:27,082 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:27,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:27,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:27,083 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:27,086 INFO L82 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2021-10-11 00:30:27,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:27,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374667535] [2021-10-11 00:30:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:27,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374667535] [2021-10-11 00:30:27,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:27,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:27,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253611624] [2021-10-11 00:30:27,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:27,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:27,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:27,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,309 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2021-10-11 00:30:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:27,332 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-10-11 00:30:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:27,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:30:27,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:27,336 INFO L225 Difference]: With dead ends: 113 [2021-10-11 00:30:27,336 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 00:30:27,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 00:30:27,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 00:30:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 00:30:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-11 00:30:27,347 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-11 00:30:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:27,348 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-11 00:30:27,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-11 00:30:27,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:30:27,350 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:27,351 INFO L422 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] [2021-10-11 00:30:27,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:30:27,352 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:27,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2021-10-11 00:30:27,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:27,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389979292] [2021-10-11 00:30:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:27,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389979292] [2021-10-11 00:30:27,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:27,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:27,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900439449] [2021-10-11 00:30:27,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:27,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:27,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:27,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,478 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2021-10-11 00:30:27,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:27,491 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2021-10-11 00:30:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:27,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 00:30:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:27,494 INFO L225 Difference]: With dead ends: 88 [2021-10-11 00:30:27,495 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 00:30:27,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 00:30:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 00:30:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 00:30:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-10-11 00:30:27,500 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2021-10-11 00:30:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:27,501 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-10-11 00:30:27,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-10-11 00:30:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:30:27,502 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:27,502 INFO L422 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] [2021-10-11 00:30:27,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:30:27,503 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2021-10-11 00:30:27,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:27,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550870021] [2021-10-11 00:30:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:27,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550870021] [2021-10-11 00:30:27,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:27,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:27,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991973769] [2021-10-11 00:30:27,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:27,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:27,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:27,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,617 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2021-10-11 00:30:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:27,673 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2021-10-11 00:30:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:27,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:30:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:27,678 INFO L225 Difference]: With dead ends: 109 [2021-10-11 00:30:27,678 INFO L226 Difference]: Without dead ends: 68 [2021-10-11 00:30:27,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-11 00:30:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-10-11 00:30:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 00:30:27,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-11 00:30:27,692 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2021-10-11 00:30:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:27,692 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-11 00:30:27,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-10-11 00:30:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 00:30:27,697 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:27,697 INFO L422 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] [2021-10-11 00:30:27,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:30:27,697 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:27,710 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2021-10-11 00:30:27,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:27,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087285950] [2021-10-11 00:30:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:27,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087285950] [2021-10-11 00:30:27,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:27,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:27,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502536876] [2021-10-11 00:30:27,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:27,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:27,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:27,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:27,820 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2021-10-11 00:30:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:27,923 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2021-10-11 00:30:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:27,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 00:30:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:27,925 INFO L225 Difference]: With dead ends: 175 [2021-10-11 00:30:27,925 INFO L226 Difference]: Without dead ends: 115 [2021-10-11 00:30:27,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:30:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-11 00:30:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2021-10-11 00:30:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 00:30:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2021-10-11 00:30:27,943 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2021-10-11 00:30:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:27,943 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2021-10-11 00:30:27,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2021-10-11 00:30:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 00:30:27,949 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:27,949 INFO L422 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] [2021-10-11 00:30:27,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:30:27,950 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2021-10-11 00:30:27,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:27,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280825717] [2021-10-11 00:30:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:28,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280825717] [2021-10-11 00:30:28,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:28,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:28,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424487817] [2021-10-11 00:30:28,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:30:28,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:28,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:30:28,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:28,047 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2021-10-11 00:30:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:28,310 INFO L93 Difference]: Finished difference Result 478 states and 677 transitions. [2021-10-11 00:30:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 00:30:28,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-10-11 00:30:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:28,314 INFO L225 Difference]: With dead ends: 478 [2021-10-11 00:30:28,314 INFO L226 Difference]: Without dead ends: 412 [2021-10-11 00:30:28,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:30:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-11 00:30:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 130. [2021-10-11 00:30:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 00:30:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2021-10-11 00:30:28,353 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 30 [2021-10-11 00:30:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:28,357 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2021-10-11 00:30:28,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:30:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2021-10-11 00:30:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:30:28,361 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:28,361 INFO L422 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] [2021-10-11 00:30:28,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:30:28,363 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:28,363 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2021-10-11 00:30:28,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:28,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374078859] [2021-10-11 00:30:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:28,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374078859] [2021-10-11 00:30:28,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:28,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:28,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102871409] [2021-10-11 00:30:28,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:30:28,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:28,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:28,429 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand 4 states. [2021-10-11 00:30:28,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:28,521 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2021-10-11 00:30:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:28,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 00:30:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:28,524 INFO L225 Difference]: With dead ends: 309 [2021-10-11 00:30:28,524 INFO L226 Difference]: Without dead ends: 185 [2021-10-11 00:30:28,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:28,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-11 00:30:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2021-10-11 00:30:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-10-11 00:30:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2021-10-11 00:30:28,538 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 31 [2021-10-11 00:30:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:28,539 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2021-10-11 00:30:28,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:30:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2021-10-11 00:30:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-11 00:30:28,540 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:28,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:30:28,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:30:28,541 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1478686347, now seen corresponding path program 1 times [2021-10-11 00:30:28,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:28,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259621905] [2021-10-11 00:30:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:28,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:30:28,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259621905] [2021-10-11 00:30:28,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:28,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:28,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007156716] [2021-10-11 00:30:28,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:28,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:28,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:28,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:28,609 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand 5 states. [2021-10-11 00:30:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:28,699 INFO L93 Difference]: Finished difference Result 365 states and 487 transitions. [2021-10-11 00:30:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:28,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2021-10-11 00:30:28,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:28,701 INFO L225 Difference]: With dead ends: 365 [2021-10-11 00:30:28,701 INFO L226 Difference]: Without dead ends: 206 [2021-10-11 00:30:28,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:30:28,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-11 00:30:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2021-10-11 00:30:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2021-10-11 00:30:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2021-10-11 00:30:28,715 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 50 [2021-10-11 00:30:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:28,716 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2021-10-11 00:30:28,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2021-10-11 00:30:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 00:30:28,717 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:28,717 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:30:28,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:30:28,717 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:28,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:28,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1506097615, now seen corresponding path program 1 times [2021-10-11 00:30:28,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:28,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486744872] [2021-10-11 00:30:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:28,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:30:28,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486744872] [2021-10-11 00:30:28,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:28,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:28,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173293751] [2021-10-11 00:30:28,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:28,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:28,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:28,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:28,787 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand 5 states. [2021-10-11 00:30:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:28,853 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2021-10-11 00:30:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:28,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2021-10-11 00:30:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:28,856 INFO L225 Difference]: With dead ends: 467 [2021-10-11 00:30:28,856 INFO L226 Difference]: Without dead ends: 356 [2021-10-11 00:30:28,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:30:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-11 00:30:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2021-10-11 00:30:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-10-11 00:30:28,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2021-10-11 00:30:28,871 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 51 [2021-10-11 00:30:28,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:28,872 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2021-10-11 00:30:28,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2021-10-11 00:30:28,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 00:30:28,873 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:28,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:30:28,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:30:28,873 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:28,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:28,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1899124625, now seen corresponding path program 1 times [2021-10-11 00:30:28,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:28,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591123264] [2021-10-11 00:30:28,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:30:28,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591123264] [2021-10-11 00:30:28,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:28,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:28,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290537348] [2021-10-11 00:30:28,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:28,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:28,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:28,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:28,930 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand 5 states. [2021-10-11 00:30:29,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:29,089 INFO L93 Difference]: Finished difference Result 368 states and 483 transitions. [2021-10-11 00:30:29,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:30:29,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2021-10-11 00:30:29,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:29,096 INFO L225 Difference]: With dead ends: 368 [2021-10-11 00:30:29,097 INFO L226 Difference]: Without dead ends: 366 [2021-10-11 00:30:29,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:30:29,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-11 00:30:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2021-10-11 00:30:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-10-11 00:30:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2021-10-11 00:30:29,113 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 51 [2021-10-11 00:30:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:29,114 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2021-10-11 00:30:29,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2021-10-11 00:30:29,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-11 00:30:29,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:29,115 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 00:30:29,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:30:29,115 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:29,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1033530397, now seen corresponding path program 1 times [2021-10-11 00:30:29,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:29,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537380849] [2021-10-11 00:30:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:29,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537380849] [2021-10-11 00:30:29,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098575629] [2021-10-11 00:30:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:29,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:30:29,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:29,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:30:29,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-11 00:30:29,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776987773] [2021-10-11 00:30:29,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:30:29,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:29,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:30:29,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:29,468 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand 6 states. [2021-10-11 00:30:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:29,684 INFO L93 Difference]: Finished difference Result 445 states and 587 transitions. [2021-10-11 00:30:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:30:29,685 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2021-10-11 00:30:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:29,687 INFO L225 Difference]: With dead ends: 445 [2021-10-11 00:30:29,687 INFO L226 Difference]: Without dead ends: 331 [2021-10-11 00:30:29,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:30:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-10-11 00:30:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 201. [2021-10-11 00:30:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-10-11 00:30:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2021-10-11 00:30:29,710 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 52 [2021-10-11 00:30:29,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:29,711 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2021-10-11 00:30:29,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:30:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2021-10-11 00:30:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-11 00:30:29,712 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:29,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:29,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-11 00:30:29,939 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2113506808, now seen corresponding path program 2 times [2021-10-11 00:30:29,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:29,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375369464] [2021-10-11 00:30:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:30:30,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375369464] [2021-10-11 00:30:30,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:30,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:30,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390869136] [2021-10-11 00:30:30,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:30,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:30,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:30,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:30,087 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 5 states. [2021-10-11 00:30:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:30,235 INFO L93 Difference]: Finished difference Result 584 states and 775 transitions. [2021-10-11 00:30:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:30:30,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2021-10-11 00:30:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:30,238 INFO L225 Difference]: With dead ends: 584 [2021-10-11 00:30:30,238 INFO L226 Difference]: Without dead ends: 412 [2021-10-11 00:30:30,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-11 00:30:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 274. [2021-10-11 00:30:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 00:30:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2021-10-11 00:30:30,276 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 73 [2021-10-11 00:30:30,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:30,277 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2021-10-11 00:30:30,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2021-10-11 00:30:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-11 00:30:30,278 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:30,278 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:30,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:30:30,278 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:30,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1906700874, now seen corresponding path program 1 times [2021-10-11 00:30:30,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:30,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790732582] [2021-10-11 00:30:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 00:30:30,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790732582] [2021-10-11 00:30:30,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:30,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:30,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074096774] [2021-10-11 00:30:30,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:30,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:30,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:30,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:30,344 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand 5 states. [2021-10-11 00:30:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:30,406 INFO L93 Difference]: Finished difference Result 483 states and 625 transitions. [2021-10-11 00:30:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:30:30,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2021-10-11 00:30:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:30,407 INFO L225 Difference]: With dead ends: 483 [2021-10-11 00:30:30,407 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:30:30,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:30:30,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:30:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:30:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:30:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:30:30,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-10-11 00:30:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:30,409 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:30:30,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:30:30,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:30:30,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:30:30,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:30:30,605 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 99 [2021-10-11 00:30:30,787 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 99 [2021-10-11 00:30:30,920 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 95 [2021-10-11 00:30:31,131 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2021-10-11 00:30:31,457 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 96 [2021-10-11 00:30:31,815 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 17 [2021-10-11 00:30:32,143 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 17 [2021-10-11 00:30:32,384 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 16 [2021-10-11 00:30:32,522 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2021-10-11 00:30:32,692 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 18 [2021-10-11 00:30:32,803 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2021-10-11 00:30:33,060 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 9 [2021-10-11 00:30:33,432 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 21 [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L333(lines 333 350) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L333-1(lines 333 350) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L333-2(lines 333 350) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L435-3(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L435-5(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,449 INFO L262 CegarLoopResult]: For program point L435-6(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-8(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-9(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-11(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-12(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-14(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-15(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L435-17(lines 435 439) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L337(lines 337 345) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L337-1(lines 337 345) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L262 CegarLoopResult]: For program point L337-2(lines 337 345) no Hoare annotation was computed. [2021-10-11 00:30:33,450 INFO L258 CegarLoopResult]: At program point L174-2(lines 174 188) the Hoare annotation is: false [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L505(lines 505 516) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307-1(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307-2(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307-3(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307-4(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L142(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L307-5(lines 307 324) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,451 INFO L262 CegarLoopResult]: For program point L142-2(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L142-3(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L142-4(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L142-5(lines 142 148) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L258 CegarLoopResult]: At program point L275(lines 274 293) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L275-1(lines 275 281) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L258 CegarLoopResult]: At program point L275-2(lines 274 293) the Hoare annotation is: false [2021-10-11 00:30:33,452 INFO L258 CegarLoopResult]: At program point L275-3(lines 274 293) the Hoare annotation is: false [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L77(lines 77 81) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2021-10-11 00:30:33,452 INFO L258 CegarLoopResult]: At program point L573-1(lines 1 955) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1) (and .cse0 (<= 2 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-11 00:30:33,452 INFO L262 CegarLoopResult]: For program point L573-2(lines 573 586) no Hoare annotation was computed. [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L573-3(lines 1 955) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441(lines 426 444) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L262 CegarLoopResult]: For program point L573-4(lines 573 586) no Hoare annotation was computed. [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441-1(lines 426 444) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L573-5(lines 1 955) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441-2(lines 426 444) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441-3(lines 426 444) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441-4(lines 426 444) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L258 CegarLoopResult]: At program point L441-5(lines 426 444) the Hoare annotation is: false [2021-10-11 00:30:33,453 INFO L262 CegarLoopResult]: For program point L178(lines 178 182) no Hoare annotation was computed. [2021-10-11 00:30:33,453 INFO L262 CegarLoopResult]: For program point L178-1(lines 275 281) no Hoare annotation was computed. [2021-10-11 00:30:33,454 INFO L262 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,467 INFO L262 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,467 INFO L262 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,467 INFO L262 CegarLoopResult]: For program point L476(lines 475 520) no Hoare annotation was computed. [2021-10-11 00:30:33,467 INFO L262 CegarLoopResult]: For program point L311(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L311-1(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L311-2(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L311-3(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L311-4(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L311-5(lines 311 319) no Hoare annotation was computed. [2021-10-11 00:30:33,468 INFO L262 CegarLoopResult]: For program point L477(lines 477 481) no Hoare annotation was computed. [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147(lines 138 151) the Hoare annotation is: false [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147-1(lines 138 151) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147-2(lines 138 151) the Hoare annotation is: false [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147-3(lines 138 151) the Hoare annotation is: false [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147-4(lines 138 151) the Hoare annotation is: false [2021-10-11 00:30:33,469 INFO L258 CegarLoopResult]: At program point L147-5(lines 138 151) the Hoare annotation is: false [2021-10-11 00:30:33,469 INFO L262 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2021-10-11 00:30:33,469 INFO L262 CegarLoopResult]: For program point L511(lines 511 515) no Hoare annotation was computed. [2021-10-11 00:30:33,470 INFO L262 CegarLoopResult]: For program point L577-2(lines 577 583) no Hoare annotation was computed. [2021-10-11 00:30:33,470 INFO L262 CegarLoopResult]: For program point L511-2(lines 275 281) no Hoare annotation was computed. [2021-10-11 00:30:33,470 INFO L262 CegarLoopResult]: For program point L577-4(lines 577 583) no Hoare annotation was computed. [2021-10-11 00:30:33,470 INFO L258 CegarLoopResult]: At program point L282(lines 282 288) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1))) [2021-10-11 00:30:33,470 INFO L258 CegarLoopResult]: At program point L282-1(lines 282 288) the Hoare annotation is: false [2021-10-11 00:30:33,470 INFO L258 CegarLoopResult]: At program point L282-2(lines 282 288) the Hoare annotation is: false [2021-10-11 00:30:33,470 INFO L262 CegarLoopResult]: For program point L250(lines 250 257) no Hoare annotation was computed. [2021-10-11 00:30:33,471 INFO L265 CegarLoopResult]: At program point L250-1(lines 250 257) the Hoare annotation is: true [2021-10-11 00:30:33,471 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:30:33,471 INFO L262 CegarLoopResult]: For program point L485(lines 485 491) no Hoare annotation was computed. [2021-10-11 00:30:33,471 INFO L258 CegarLoopResult]: At program point L485-1(lines 485 491) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2021-10-11 00:30:33,471 INFO L258 CegarLoopResult]: At program point L386(lines 381 389) the Hoare annotation is: false [2021-10-11 00:30:33,471 INFO L258 CegarLoopResult]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2021-10-11 00:30:33,471 INFO L258 CegarLoopResult]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2021-10-11 00:30:33,471 INFO L262 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L258 CegarLoopResult]: At program point L552(lines 1 955) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454-2(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454-3(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454-5(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454-6(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,472 INFO L258 CegarLoopResult]: At program point L223(lines 219 225) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2021-10-11 00:30:33,472 INFO L262 CegarLoopResult]: For program point L454-8(lines 454 458) no Hoare annotation was computed. [2021-10-11 00:30:33,473 INFO L258 CegarLoopResult]: At program point L157(lines 152 160) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2021-10-11 00:30:33,473 INFO L258 CegarLoopResult]: At program point L157-1(lines 152 160) the Hoare annotation is: false [2021-10-11 00:30:33,473 INFO L258 CegarLoopResult]: At program point L157-2(lines 152 160) the Hoare annotation is: false [2021-10-11 00:30:33,473 INFO L258 CegarLoopResult]: At program point L521(lines 474 522) the Hoare annotation is: false [2021-10-11 00:30:33,473 INFO L265 CegarLoopResult]: At program point L259(lines 240 262) the Hoare annotation is: true [2021-10-11 00:30:33,473 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:30:33,473 INFO L258 CegarLoopResult]: At program point L460(lines 445 463) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2021-10-11 00:30:33,474 INFO L258 CegarLoopResult]: At program point L460-1(lines 445 463) the Hoare annotation is: false [2021-10-11 00:30:33,474 INFO L258 CegarLoopResult]: At program point L460-2(lines 445 463) the Hoare annotation is: false [2021-10-11 00:30:33,474 INFO L258 CegarLoopResult]: At program point L560(lines 555 563) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2021-10-11 00:30:33,474 INFO L262 CegarLoopResult]: For program point L65(lines 65 69) no Hoare annotation was computed. [2021-10-11 00:30:33,474 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:30:33,474 INFO L262 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2021-10-11 00:30:33,474 INFO L262 CegarLoopResult]: For program point L65-6(lines 65 69) no Hoare annotation was computed. [2021-10-11 00:30:33,475 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2021-10-11 00:30:33,475 INFO L262 CegarLoopResult]: For program point L495(lines 495 501) no Hoare annotation was computed. [2021-10-11 00:30:33,475 INFO L258 CegarLoopResult]: At program point L495-1(lines 495 501) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2021-10-11 00:30:33,475 INFO L258 CegarLoopResult]: At program point L134(lines 129 137) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2))) [2021-10-11 00:30:33,476 INFO L258 CegarLoopResult]: At program point L134-1(lines 129 137) the Hoare annotation is: false [2021-10-11 00:30:33,476 INFO L258 CegarLoopResult]: At program point L134-2(lines 129 137) the Hoare annotation is: false [2021-10-11 00:30:33,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:33 BoogieIcfgContainer [2021-10-11 00:30:33,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:33,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:33,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:33,519 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:33,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:26" (3/4) ... [2021-10-11 00:30:33,523 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:30:33,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-11 00:30:33,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-11 00:30:33,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 00:30:33,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 00:30:33,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:30:33,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:30:33,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:30:33,586 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) [2021-10-11 00:30:33,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2021-10-11 00:30:33,592 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2021-10-11 00:30:33,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2021-10-11 00:30:33,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2021-10-11 00:30:33,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2021-10-11 00:30:33,694 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78587e30-57cd-40b8-b99b-f56671a2b6f1/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:33,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:33,696 INFO L168 Benchmark]: Toolchain (without parser) took 9087.16 ms. Allocated memory was 86.0 MB in the beginning and 197.1 MB in the end (delta: 111.1 MB). Free memory was 47.6 MB in the beginning and 157.3 MB in the end (delta: -109.8 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,696 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:33,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.14 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 47.4 MB in the beginning and 73.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.15 ms. Allocated memory is still 107.0 MB. Free memory was 73.3 MB in the beginning and 69.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,697 INFO L168 Benchmark]: Boogie Preprocessor took 49.61 ms. Allocated memory is still 107.0 MB. Free memory was 69.1 MB in the beginning and 66.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,698 INFO L168 Benchmark]: RCFGBuilder took 1130.09 ms. Allocated memory is still 107.0 MB. Free memory was 66.5 MB in the beginning and 49.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,698 INFO L168 Benchmark]: TraceAbstraction took 7021.06 ms. Allocated memory was 107.0 MB in the beginning and 197.1 MB in the end (delta: 90.2 MB). Free memory was 48.9 MB in the beginning and 166.8 MB in the end (delta: -117.9 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,699 INFO L168 Benchmark]: Witness Printer took 175.84 ms. Allocated memory is still 197.1 MB. Free memory was 166.8 MB in the beginning and 157.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:33,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 618.14 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 47.4 MB in the beginning and 73.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.15 ms. Allocated memory is still 107.0 MB. Free memory was 73.3 MB in the beginning and 69.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.61 ms. Allocated memory is still 107.0 MB. Free memory was 69.1 MB in the beginning and 66.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1130.09 ms. Allocated memory is still 107.0 MB. Free memory was 66.5 MB in the beginning and 49.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7021.06 ms. Allocated memory was 107.0 MB in the beginning and 197.1 MB in the end (delta: 90.2 MB). Free memory was 48.9 MB in the beginning and 166.8 MB in the end (delta: -117.9 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. * Witness Printer took 175.84 ms. Allocated memory is still 197.1 MB. Free memory was 166.8 MB in the beginning and 157.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 1985 SDslu, 2095 SDs, 0 SdLazy, 367 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1114 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 115 NumberOfFragments, 308 HoareAnnotationTreeSize, 42 FomulaSimplifications, 1002506 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 52725 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 43845 SizeOfPredicates, 3 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 162/168 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 proved your program to be correct! Received shutdown request...