./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/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_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/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_952b8854-ce3d-4a85-be70-43428f3dfbf6/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 41f42675c60ac44d105cf71847968c4edf76aefd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:27:41,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:41,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:41,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:41,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:41,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:41,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:41,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:41,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:41,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:41,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:41,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:41,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:41,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:41,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:41,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:41,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:41,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:41,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:41,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:41,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:41,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:41,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:41,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:41,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:41,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:41,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:41,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:41,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:41,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:41,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:41,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:41,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:41,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:41,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:41,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:41,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:41,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:41,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:41,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:41,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:41,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:27:41,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:41,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:41,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:41,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:41,384 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:41,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:41,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:41,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:41,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:41,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:41,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:41,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:41,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:41,386 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:41,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:41,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:41,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:41,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:41,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:41,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:41,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:41,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:41,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:41,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:41,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:41,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:27:41,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:41,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:41,389 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_952b8854-ce3d-4a85-be70-43428f3dfbf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2021-10-11 00:27:41,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:41,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:41,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:41,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:41,696 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:41,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2021-10-11 00:27:41,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/data/b384e01ad/94ba1c4825ef429c85b0772fa37fcb62/FLAGe5e2eeba3 [2021-10-11 00:27:42,252 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:42,253 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2021-10-11 00:27:42,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/data/b384e01ad/94ba1c4825ef429c85b0772fa37fcb62/FLAGe5e2eeba3 [2021-10-11 00:27:42,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/data/b384e01ad/94ba1c4825ef429c85b0772fa37fcb62 [2021-10-11 00:27:42,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:42,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:42,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:42,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:42,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:42,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:42" (1/1) ... [2021-10-11 00:27:42,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c09693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:42, skipping insertion in model container [2021-10-11 00:27:42,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:42" (1/1) ... [2021-10-11 00:27:42,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:42,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:42,810 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_952b8854-ce3d-4a85-be70-43428f3dfbf6/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1281,1294] [2021-10-11 00:27:42,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:42,934 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:42,947 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_952b8854-ce3d-4a85-be70-43428f3dfbf6/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1281,1294] [2021-10-11 00:27:43,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:43,060 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:43,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43 WrapperNode [2021-10-11 00:27:43,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:43,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:43,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:43,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:43,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:43,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:43,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:43,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:43,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... [2021-10-11 00:27:43,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:43,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:43,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:43,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:43,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/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 00:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:27:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:44,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:44,340 INFO L299 CfgBuilder]: Removed 122 assume(true) statements. [2021-10-11 00:27:44,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:44 BoogieIcfgContainer [2021-10-11 00:27:44,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:44,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:27:44,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:27:44,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:27:44,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:42" (1/3) ... [2021-10-11 00:27:44,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54df71e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:44, skipping insertion in model container [2021-10-11 00:27:44,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:43" (2/3) ... [2021-10-11 00:27:44,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54df71e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:44, skipping insertion in model container [2021-10-11 00:27:44,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:44" (3/3) ... [2021-10-11 00:27:44,356 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2021-10-11 00:27:44,373 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:27:44,376 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:27:44,387 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:27:44,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:27:44,427 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:27:44,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:27:44,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:44,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:44,428 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:27:44,428 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:44,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:27:44,447 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2021-10-11 00:27:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:27:44,455 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:44,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:44,458 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -732978716, now seen corresponding path program 1 times [2021-10-11 00:27:44,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:44,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68447172] [2021-10-11 00:27:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:44,754 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 00:27:44,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68447172] [2021-10-11 00:27:44,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:44,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:44,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001373337] [2021-10-11 00:27:44,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:27:44,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:44,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:27:44,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:27:44,778 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2021-10-11 00:27:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:44,803 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2021-10-11 00:27:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:27:44,805 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:27:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:44,815 INFO L225 Difference]: With dead ends: 179 [2021-10-11 00:27:44,815 INFO L226 Difference]: Without dead ends: 89 [2021-10-11 00:27:44,819 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 00:27:44,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-11 00:27:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-10-11 00:27:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-10-11 00:27:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2021-10-11 00:27:44,863 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2021-10-11 00:27:44,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:44,863 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2021-10-11 00:27:44,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:27:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2021-10-11 00:27:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:27:44,865 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:44,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:27:44,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:27:44,866 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:44,867 INFO L82 PathProgramCache]: Analyzing trace with hash -951814685, now seen corresponding path program 1 times [2021-10-11 00:27:44,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:44,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112267083] [2021-10-11 00:27:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,027 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 00:27:45,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112267083] [2021-10-11 00:27:45,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:45,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962792176] [2021-10-11 00:27:45,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:45,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:45,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:45,034 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2021-10-11 00:27:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:45,048 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2021-10-11 00:27:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:45,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:27:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:45,056 INFO L225 Difference]: With dead ends: 89 [2021-10-11 00:27:45,056 INFO L226 Difference]: Without dead ends: 41 [2021-10-11 00:27:45,058 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 00:27:45,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-11 00:27:45,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-11 00:27:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-10-11 00:27:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2021-10-11 00:27:45,075 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2021-10-11 00:27:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:45,077 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2021-10-11 00:27:45,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2021-10-11 00:27:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:27:45,078 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:45,078 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 00:27:45,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:27:45,078 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:45,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2021-10-11 00:27:45,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:45,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137871042] [2021-10-11 00:27:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,231 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 00:27:45,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137871042] [2021-10-11 00:27:45,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:27:45,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886150156] [2021-10-11 00:27:45,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:45,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:45,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:45,234 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 5 states. [2021-10-11 00:27:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:45,295 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2021-10-11 00:27:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:45,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:27:45,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:45,297 INFO L225 Difference]: With dead ends: 99 [2021-10-11 00:27:45,297 INFO L226 Difference]: Without dead ends: 65 [2021-10-11 00:27:45,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 00:27:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-11 00:27:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2021-10-11 00:27:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-11 00:27:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2021-10-11 00:27:45,317 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2021-10-11 00:27:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:45,317 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2021-10-11 00:27:45,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:45,317 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2021-10-11 00:27:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:27:45,318 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:45,319 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] [2021-10-11 00:27:45,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:27:45,319 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:45,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:45,320 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2021-10-11 00:27:45,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:45,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643941162] [2021-10-11 00:27:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,402 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 00:27:45,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643941162] [2021-10-11 00:27:45,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:45,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559753339] [2021-10-11 00:27:45,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:45,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:45,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:45,409 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2021-10-11 00:27:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:45,453 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2021-10-11 00:27:45,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:45,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 00:27:45,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:45,455 INFO L225 Difference]: With dead ends: 137 [2021-10-11 00:27:45,455 INFO L226 Difference]: Without dead ends: 83 [2021-10-11 00:27:45,456 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 00:27:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-11 00:27:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2021-10-11 00:27:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-10-11 00:27:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2021-10-11 00:27:45,467 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2021-10-11 00:27:45,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:45,467 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2021-10-11 00:27:45,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2021-10-11 00:27:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:27:45,469 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:45,469 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] [2021-10-11 00:27:45,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:27:45,469 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:45,470 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2021-10-11 00:27:45,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:45,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967711941] [2021-10-11 00:27:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,535 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 00:27:45,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967711941] [2021-10-11 00:27:45,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:45,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435555735] [2021-10-11 00:27:45,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:45,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:45,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:45,538 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2021-10-11 00:27:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:45,636 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2021-10-11 00:27:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:27:45,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:27:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:45,640 INFO L225 Difference]: With dead ends: 378 [2021-10-11 00:27:45,640 INFO L226 Difference]: Without dead ends: 304 [2021-10-11 00:27:45,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 00:27:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-11 00:27:45,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2021-10-11 00:27:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-10-11 00:27:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2021-10-11 00:27:45,664 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2021-10-11 00:27:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:45,664 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2021-10-11 00:27:45,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2021-10-11 00:27:45,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:27:45,666 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:45,666 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] [2021-10-11 00:27:45,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:27:45,667 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:45,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:45,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2021-10-11 00:27:45,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:45,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901119153] [2021-10-11 00:27:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,745 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 00:27:45,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901119153] [2021-10-11 00:27:45,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:27:45,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785557981] [2021-10-11 00:27:45,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:45,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:45,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:45,748 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2021-10-11 00:27:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:45,855 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2021-10-11 00:27:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:27:45,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-10-11 00:27:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:45,858 INFO L225 Difference]: With dead ends: 529 [2021-10-11 00:27:45,858 INFO L226 Difference]: Without dead ends: 392 [2021-10-11 00:27:45,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 00:27:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-11 00:27:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2021-10-11 00:27:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-10-11 00:27:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2021-10-11 00:27:45,881 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2021-10-11 00:27:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:45,881 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2021-10-11 00:27:45,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:45,882 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2021-10-11 00:27:45,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-11 00:27:45,883 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:45,884 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, 1, 1, 1, 1] [2021-10-11 00:27:45,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:27:45,884 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:45,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:45,885 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2021-10-11 00:27:45,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:45,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555118818] [2021-10-11 00:27:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:45,942 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 00:27:45,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555118818] [2021-10-11 00:27:45,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:45,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:27:45,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473006113] [2021-10-11 00:27:45,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:27:45,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:45,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:27:45,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:27:45,945 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2021-10-11 00:27:46,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:46,002 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2021-10-11 00:27:46,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:27:46,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2021-10-11 00:27:46,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:46,005 INFO L225 Difference]: With dead ends: 429 [2021-10-11 00:27:46,005 INFO L226 Difference]: Without dead ends: 294 [2021-10-11 00:27:46,006 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 00:27:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-10-11 00:27:46,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2021-10-11 00:27:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:27:46,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2021-10-11 00:27:46,026 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2021-10-11 00:27:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:46,026 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2021-10-11 00:27:46,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:27:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2021-10-11 00:27:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-11 00:27:46,028 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:46,029 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, 1, 1, 1, 1] [2021-10-11 00:27:46,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:27:46,029 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:46,030 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2021-10-11 00:27:46,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:46,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723148052] [2021-10-11 00:27:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:46,121 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 00:27:46,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723148052] [2021-10-11 00:27:46,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:46,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:27:46,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886026876] [2021-10-11 00:27:46,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:46,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:46,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:46,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:46,124 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2021-10-11 00:27:46,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:46,217 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2021-10-11 00:27:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:27:46,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2021-10-11 00:27:46,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:46,221 INFO L225 Difference]: With dead ends: 447 [2021-10-11 00:27:46,221 INFO L226 Difference]: Without dead ends: 306 [2021-10-11 00:27:46,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:27:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-11 00:27:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2021-10-11 00:27:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2021-10-11 00:27:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2021-10-11 00:27:46,243 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2021-10-11 00:27:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:46,244 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2021-10-11 00:27:46,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2021-10-11 00:27:46,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-11 00:27:46,251 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:46,252 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, 1, 1, 1, 1] [2021-10-11 00:27:46,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:27:46,252 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:46,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:46,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2021-10-11 00:27:46,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:46,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334701867] [2021-10-11 00:27:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:46,327 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 00:27:46,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334701867] [2021-10-11 00:27:46,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:46,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:27:46,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999500953] [2021-10-11 00:27:46,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:46,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:46,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:46,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:46,334 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 3 states. [2021-10-11 00:27:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:46,385 INFO L93 Difference]: Finished difference Result 383 states and 521 transitions. [2021-10-11 00:27:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:46,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2021-10-11 00:27:46,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:46,388 INFO L225 Difference]: With dead ends: 383 [2021-10-11 00:27:46,388 INFO L226 Difference]: Without dead ends: 238 [2021-10-11 00:27:46,389 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 00:27:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-10-11 00:27:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-10-11 00:27:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-10-11 00:27:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2021-10-11 00:27:46,420 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 35 [2021-10-11 00:27:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:46,421 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2021-10-11 00:27:46,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2021-10-11 00:27:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 00:27:46,425 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:46,425 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, 1, 1, 1, 1, 1] [2021-10-11 00:27:46,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:27:46,426 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:46,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:46,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2021-10-11 00:27:46,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:46,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311932371] [2021-10-11 00:27:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:46,519 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 00:27:46,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311932371] [2021-10-11 00:27:46,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:46,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:27:46,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827130352] [2021-10-11 00:27:46,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:27:46,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:46,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:27:46,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:27:46,524 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand 3 states. [2021-10-11 00:27:46,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:46,588 INFO L93 Difference]: Finished difference Result 327 states and 434 transitions. [2021-10-11 00:27:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:27:46,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2021-10-11 00:27:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:46,592 INFO L225 Difference]: With dead ends: 327 [2021-10-11 00:27:46,592 INFO L226 Difference]: Without dead ends: 325 [2021-10-11 00:27:46,593 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 00:27:46,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-10-11 00:27:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 274. [2021-10-11 00:27:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 00:27:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 368 transitions. [2021-10-11 00:27:46,624 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 368 transitions. Word has length 36 [2021-10-11 00:27:46,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:46,625 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 368 transitions. [2021-10-11 00:27:46,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:27:46,625 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 368 transitions. [2021-10-11 00:27:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 00:27:46,626 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:46,626 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1] [2021-10-11 00:27:46,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:27:46,627 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:46,627 INFO L82 PathProgramCache]: Analyzing trace with hash 65975691, now seen corresponding path program 1 times [2021-10-11 00:27:46,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:46,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691557402] [2021-10-11 00:27:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 00:27:46,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691557402] [2021-10-11 00:27:46,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:27:46,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:27:46,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863485537] [2021-10-11 00:27:46,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:27:46,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:27:46,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:27:46,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:27:46,737 INFO L87 Difference]: Start difference. First operand 274 states and 368 transitions. Second operand 6 states. [2021-10-11 00:27:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:27:47,024 INFO L93 Difference]: Finished difference Result 801 states and 1075 transitions. [2021-10-11 00:27:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:27:47,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2021-10-11 00:27:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:27:47,028 INFO L225 Difference]: With dead ends: 801 [2021-10-11 00:27:47,029 INFO L226 Difference]: Without dead ends: 534 [2021-10-11 00:27:47,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:27:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-10-11 00:27:47,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2021-10-11 00:27:47,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-10-11 00:27:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2021-10-11 00:27:47,081 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 54 [2021-10-11 00:27:47,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:27:47,081 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2021-10-11 00:27:47,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:27:47,082 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2021-10-11 00:27:47,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-11 00:27:47,083 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:27:47,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 00:27:47,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:27:47,084 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:27:47,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:47,084 INFO L82 PathProgramCache]: Analyzing trace with hash -376855367, now seen corresponding path program 1 times [2021-10-11 00:27:47,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:47,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866514316] [2021-10-11 00:27:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:47,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:47,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:47,327 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:47,327 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:27:47,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:27:47,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:47 BoogieIcfgContainer [2021-10-11 00:27:47,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:27:47,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:47,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:47,520 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:47,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:44" (3/4) ... [2021-10-11 00:27:47,523 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:27:47,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_952b8854-ce3d-4a85-be70-43428f3dfbf6/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:27:47,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:47,706 INFO L168 Benchmark]: Toolchain (without parser) took 5123.15 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 66.7 MB in the beginning and 111.8 MB in the end (delta: -45.0 MB). Peak memory consumption was 80.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,707 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:47,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 64.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 100.7 MB. Free memory was 64.8 MB in the beginning and 61.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,708 INFO L168 Benchmark]: Boogie Preprocessor took 69.89 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 59.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,708 INFO L168 Benchmark]: RCFGBuilder took 1140.72 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 91.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,709 INFO L168 Benchmark]: TraceAbstraction took 3172.41 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 90.0 MB in the beginning and 58.3 MB in the end (delta: 31.7 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,709 INFO L168 Benchmark]: Witness Printer took 184.71 ms. Allocated memory is still 146.8 MB. Free memory was 57.3 MB in the beginning and 111.8 MB in the end (delta: -54.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:47,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 474.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 64.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 100.7 MB. Free memory was 64.8 MB in the beginning and 61.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.89 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 59.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1140.72 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 91.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3172.41 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 90.0 MB in the beginning and 58.3 MB in the end (delta: 31.7 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. * Witness Printer took 184.71 ms. Allocated memory is still 146.8 MB. Free memory was 57.3 MB in the beginning and 111.8 MB in the end (delta: -54.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] int retValue_acc ; [L442] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L584] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L205] int tmp ; [L230] int retValue_acc ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L199] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L486] COND FALSE !(\read(methAndRunningLastTime)) [L491] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L486] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 910 SDtfs, 1379 SDslu, 1482 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=10, 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, 11 MinimizatonAttempts, 1043 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 19587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 17/17 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 incorrect! Received shutdown request...