./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer --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 864598d769cf301df696f6997eba405266387160 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:54:39,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:54:39,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:54:39,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:54:39,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:54:39,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:54:39,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:54:39,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:54:39,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:54:39,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:54:39,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:54:39,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:54:39,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:54:39,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:54:39,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:54:39,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:54:39,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:54:39,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:54:39,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:54:39,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:54:39,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:54:39,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:54:39,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:54:39,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:54:39,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:54:39,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:54:39,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:54:39,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:54:39,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:54:39,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:54:39,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:54:39,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:54:39,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:54:39,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:54:39,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:54:39,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:54:39,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:54:39,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:54:39,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:54:39,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:54:39,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:54:39,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:54:40,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:54:40,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:54:40,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:54:40,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:54:40,011 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:54:40,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:54:40,011 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:54:40,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:54:40,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:54:40,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:54:40,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:54:40,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:54:40,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:54:40,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:54:40,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:54:40,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:54:40,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:54:40,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:54:40,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:54:40,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:54:40,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:54:40,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:54:40,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:54:40,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:54:40,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:54:40,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:54:40,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:54:40,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:54:40,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:54:40,018 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-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 864598d769cf301df696f6997eba405266387160 [2020-11-29 18:54:40,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:54:40,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:54:40,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:54:40,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:54:40,315 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:54:40,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-29 18:54:40,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/data/b1b0d44ba/1f2b045a1d8442d699f36d37df5d9d28/FLAG94567c233 [2020-11-29 18:54:41,103 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:54:41,104 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-29 18:54:41,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/data/b1b0d44ba/1f2b045a1d8442d699f36d37df5d9d28/FLAG94567c233 [2020-11-29 18:54:41,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/data/b1b0d44ba/1f2b045a1d8442d699f36d37df5d9d28 [2020-11-29 18:54:41,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:54:41,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:54:41,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:41,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:54:41,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:54:41,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:41" (1/1) ... [2020-11-29 18:54:41,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfb2ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:41, skipping insertion in model container [2020-11-29 18:54:41,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:54:41" (1/1) ... [2020-11-29 18:54:41,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:54:41,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:54:41,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:41,842 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:54:41,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:54:42,018 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:54:42,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42 WrapperNode [2020-11-29 18:54:42,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:54:42,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:42,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:54:42,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:54:42,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:54:42,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:54:42,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:54:42,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:54:42,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... [2020-11-29 18:54:42,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:54:42,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:54:42,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:54:42,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:54:42,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/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 [2020-11-29 18:54:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:54:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:54:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:54:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:54:43,513 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:54:43,514 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 18:54:43,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:43 BoogieIcfgContainer [2020-11-29 18:54:43,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:54:43,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:54:43,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:54:43,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:54:43,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:54:41" (1/3) ... [2020-11-29 18:54:43,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f06c9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:54:43, skipping insertion in model container [2020-11-29 18:54:43,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:54:42" (2/3) ... [2020-11-29 18:54:43,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f06c9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:54:43, skipping insertion in model container [2020-11-29 18:54:43,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:43" (3/3) ... [2020-11-29 18:54:43,525 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-11-29 18:54:43,536 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:54:43,540 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 18:54:43,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 18:54:43,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:54:43,582 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:54:43,583 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:54:43,583 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:54:43,583 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:54:43,583 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:54:43,583 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:54:43,584 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:54:43,603 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-11-29 18:54:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:54:43,610 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:43,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:43,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:43,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1866399249, now seen corresponding path program 1 times [2020-11-29 18:54:43,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:43,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705513800] [2020-11-29 18:54:43,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:43,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705513800] [2020-11-29 18:54:43,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:43,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:54:43,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922716035] [2020-11-29 18:54:43,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:54:43,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:43,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:54:43,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:54:43,944 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2020-11-29 18:54:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:43,990 INFO L93 Difference]: Finished difference Result 235 states and 356 transitions. [2020-11-29 18:54:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:54:43,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 18:54:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:44,008 INFO L225 Difference]: With dead ends: 235 [2020-11-29 18:54:44,008 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 18:54:44,013 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 [2020-11-29 18:54:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 18:54:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 18:54:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 18:54:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-11-29 18:54:44,056 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2020-11-29 18:54:44,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:44,057 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-11-29 18:54:44,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:54:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-11-29 18:54:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:54:44,059 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:44,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:44,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:54:44,060 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1381811150, now seen corresponding path program 1 times [2020-11-29 18:54:44,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:44,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062075313] [2020-11-29 18:54:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:44,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062075313] [2020-11-29 18:54:44,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:44,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:54:44,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428493314] [2020-11-29 18:54:44,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:54:44,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:44,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:44,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:44,201 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-11-29 18:54:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:44,227 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2020-11-29 18:54:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:44,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 18:54:44,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:44,229 INFO L225 Difference]: With dead ends: 115 [2020-11-29 18:54:44,229 INFO L226 Difference]: Without dead ends: 49 [2020-11-29 18:54:44,230 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 [2020-11-29 18:54:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-29 18:54:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-29 18:54:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-29 18:54:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2020-11-29 18:54:44,240 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2020-11-29 18:54:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:44,241 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2020-11-29 18:54:44,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:54:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2020-11-29 18:54:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:54:44,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:44,242 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] [2020-11-29 18:54:44,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:54:44,243 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:44,243 INFO L82 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2020-11-29 18:54:44,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:44,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981032949] [2020-11-29 18:54:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:44,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981032949] [2020-11-29 18:54:44,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:44,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:54:44,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726958436] [2020-11-29 18:54:44,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:54:44,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:44,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:44,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:44,416 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2020-11-29 18:54:44,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:44,459 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2020-11-29 18:54:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:44,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 18:54:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:44,461 INFO L225 Difference]: With dead ends: 135 [2020-11-29 18:54:44,461 INFO L226 Difference]: Without dead ends: 92 [2020-11-29 18:54:44,462 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 [2020-11-29 18:54:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-29 18:54:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2020-11-29 18:54:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-29 18:54:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2020-11-29 18:54:44,478 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 22 [2020-11-29 18:54:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:44,478 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2020-11-29 18:54:44,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:54:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2020-11-29 18:54:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:54:44,480 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:44,480 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] [2020-11-29 18:54:44,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:54:44,480 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:44,481 INFO L82 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2020-11-29 18:54:44,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:44,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129683278] [2020-11-29 18:54:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:44,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129683278] [2020-11-29 18:54:44,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:44,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:54:44,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902773630] [2020-11-29 18:54:44,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:54:44,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:44,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:44,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:44,549 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2020-11-29 18:54:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:44,656 INFO L93 Difference]: Finished difference Result 211 states and 318 transitions. [2020-11-29 18:54:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:44,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 18:54:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:44,658 INFO L225 Difference]: With dead ends: 211 [2020-11-29 18:54:44,658 INFO L226 Difference]: Without dead ends: 129 [2020-11-29 18:54:44,659 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 [2020-11-29 18:54:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-29 18:54:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2020-11-29 18:54:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-29 18:54:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 185 transitions. [2020-11-29 18:54:44,682 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 185 transitions. Word has length 24 [2020-11-29 18:54:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:44,682 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 185 transitions. [2020-11-29 18:54:44,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:54:44,682 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 185 transitions. [2020-11-29 18:54:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 18:54:44,683 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:44,684 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] [2020-11-29 18:54:44,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:54:44,684 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:44,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:44,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2020-11-29 18:54:44,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:44,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439799307] [2020-11-29 18:54:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:44,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439799307] [2020-11-29 18:54:44,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:44,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:54:44,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521931882] [2020-11-29 18:54:44,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:44,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:44,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:44,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:44,833 INFO L87 Difference]: Start difference. First operand 127 states and 185 transitions. Second operand 5 states. [2020-11-29 18:54:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:45,062 INFO L93 Difference]: Finished difference Result 451 states and 663 transitions. [2020-11-29 18:54:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:54:45,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 18:54:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:45,066 INFO L225 Difference]: With dead ends: 451 [2020-11-29 18:54:45,066 INFO L226 Difference]: Without dead ends: 330 [2020-11-29 18:54:45,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:54:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-29 18:54:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 210. [2020-11-29 18:54:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-29 18:54:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 296 transitions. [2020-11-29 18:54:45,135 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 296 transitions. Word has length 25 [2020-11-29 18:54:45,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:45,136 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 296 transitions. [2020-11-29 18:54:45,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 296 transitions. [2020-11-29 18:54:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 18:54:45,143 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:45,143 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] [2020-11-29 18:54:45,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:54:45,144 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:45,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:45,145 INFO L82 PathProgramCache]: Analyzing trace with hash 731508994, now seen corresponding path program 1 times [2020-11-29 18:54:45,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:45,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55122703] [2020-11-29 18:54:45,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:45,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55122703] [2020-11-29 18:54:45,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:45,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:54:45,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035102352] [2020-11-29 18:54:45,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:45,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:45,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:45,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:45,256 INFO L87 Difference]: Start difference. First operand 210 states and 296 transitions. Second operand 5 states. [2020-11-29 18:54:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:45,512 INFO L93 Difference]: Finished difference Result 450 states and 648 transitions. [2020-11-29 18:54:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:54:45,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 18:54:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:45,516 INFO L225 Difference]: With dead ends: 450 [2020-11-29 18:54:45,517 INFO L226 Difference]: Without dead ends: 448 [2020-11-29 18:54:45,517 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 [2020-11-29 18:54:45,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-11-29 18:54:45,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 210. [2020-11-29 18:54:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-29 18:54:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 294 transitions. [2020-11-29 18:54:45,558 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 294 transitions. Word has length 26 [2020-11-29 18:54:45,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:45,558 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 294 transitions. [2020-11-29 18:54:45,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:45,559 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 294 transitions. [2020-11-29 18:54:45,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:54:45,561 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:45,561 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] [2020-11-29 18:54:45,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:54:45,562 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:45,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:45,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1548133156, now seen corresponding path program 1 times [2020-11-29 18:54:45,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:45,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076543426] [2020-11-29 18:54:45,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:45,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076543426] [2020-11-29 18:54:45,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:45,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:54:45,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010105189] [2020-11-29 18:54:45,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:54:45,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:45,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:54:45,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:54:45,617 INFO L87 Difference]: Start difference. First operand 210 states and 294 transitions. Second operand 4 states. [2020-11-29 18:54:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:45,751 INFO L93 Difference]: Finished difference Result 434 states and 619 transitions. [2020-11-29 18:54:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:54:45,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 18:54:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:45,755 INFO L225 Difference]: With dead ends: 434 [2020-11-29 18:54:45,755 INFO L226 Difference]: Without dead ends: 313 [2020-11-29 18:54:45,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:54:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-29 18:54:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 309. [2020-11-29 18:54:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-29 18:54:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2020-11-29 18:54:45,787 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 31 [2020-11-29 18:54:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:45,789 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2020-11-29 18:54:45,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:54:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2020-11-29 18:54:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:54:45,798 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:45,798 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] [2020-11-29 18:54:45,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:54:45,798 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:45,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:45,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1289967718, now seen corresponding path program 1 times [2020-11-29 18:54:45,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:45,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339965704] [2020-11-29 18:54:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:45,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339965704] [2020-11-29 18:54:45,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:45,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:54:45,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970268470] [2020-11-29 18:54:45,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:54:45,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:45,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:54:45,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:54:45,868 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand 4 states. [2020-11-29 18:54:45,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:45,972 INFO L93 Difference]: Finished difference Result 910 states and 1288 transitions. [2020-11-29 18:54:45,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:54:45,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 18:54:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:45,977 INFO L225 Difference]: With dead ends: 910 [2020-11-29 18:54:45,978 INFO L226 Difference]: Without dead ends: 688 [2020-11-29 18:54:45,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:45,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-11-29 18:54:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 309. [2020-11-29 18:54:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-29 18:54:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 427 transitions. [2020-11-29 18:54:46,014 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 427 transitions. Word has length 31 [2020-11-29 18:54:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:46,015 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 427 transitions. [2020-11-29 18:54:46,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:54:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 427 transitions. [2020-11-29 18:54:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:54:46,018 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:46,019 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] [2020-11-29 18:54:46,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:54:46,019 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:46,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:46,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1682994728, now seen corresponding path program 1 times [2020-11-29 18:54:46,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:46,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751012304] [2020-11-29 18:54:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:46,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751012304] [2020-11-29 18:54:46,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:46,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:54:46,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916780442] [2020-11-29 18:54:46,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:46,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:46,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:46,098 INFO L87 Difference]: Start difference. First operand 309 states and 427 transitions. Second operand 5 states. [2020-11-29 18:54:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:46,352 INFO L93 Difference]: Finished difference Result 920 states and 1288 transitions. [2020-11-29 18:54:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:54:46,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-29 18:54:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:46,357 INFO L225 Difference]: With dead ends: 920 [2020-11-29 18:54:46,357 INFO L226 Difference]: Without dead ends: 698 [2020-11-29 18:54:46,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:54:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-11-29 18:54:46,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 340. [2020-11-29 18:54:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-11-29 18:54:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 473 transitions. [2020-11-29 18:54:46,405 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 473 transitions. Word has length 31 [2020-11-29 18:54:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:46,406 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 473 transitions. [2020-11-29 18:54:46,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 473 transitions. [2020-11-29 18:54:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 18:54:46,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:46,409 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-29 18:54:46,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:54:46,409 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2133835236, now seen corresponding path program 1 times [2020-11-29 18:54:46,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:46,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253964818] [2020-11-29 18:54:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:54:46,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253964818] [2020-11-29 18:54:46,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:46,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:54:46,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918682945] [2020-11-29 18:54:46,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:54:46,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:46,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:54:46,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:54:46,484 INFO L87 Difference]: Start difference. First operand 340 states and 473 transitions. Second operand 3 states. [2020-11-29 18:54:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:46,574 INFO L93 Difference]: Finished difference Result 429 states and 592 transitions. [2020-11-29 18:54:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:54:46,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-11-29 18:54:46,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:46,581 INFO L225 Difference]: With dead ends: 429 [2020-11-29 18:54:46,581 INFO L226 Difference]: Without dead ends: 162 [2020-11-29 18:54:46,582 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 [2020-11-29 18:54:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-29 18:54:46,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-11-29 18:54:46,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 18:54:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2020-11-29 18:54:46,596 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 47 [2020-11-29 18:54:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:46,596 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2020-11-29 18:54:46,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:54:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2020-11-29 18:54:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:54:46,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:46,598 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:46,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:54:46,600 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:46,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:46,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1024245214, now seen corresponding path program 1 times [2020-11-29 18:54:46,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:46,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155189166] [2020-11-29 18:54:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:54:46,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155189166] [2020-11-29 18:54:46,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:46,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:54:46,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792848728] [2020-11-29 18:54:46,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:46,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:46,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:46,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:46,660 INFO L87 Difference]: Start difference. First operand 150 states and 196 transitions. Second operand 5 states. [2020-11-29 18:54:46,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:46,757 INFO L93 Difference]: Finished difference Result 393 states and 514 transitions. [2020-11-29 18:54:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:54:46,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-29 18:54:46,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:46,760 INFO L225 Difference]: With dead ends: 393 [2020-11-29 18:54:46,760 INFO L226 Difference]: Without dead ends: 249 [2020-11-29 18:54:46,761 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 [2020-11-29 18:54:46,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-29 18:54:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 159. [2020-11-29 18:54:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-29 18:54:46,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 205 transitions. [2020-11-29 18:54:46,777 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 205 transitions. Word has length 51 [2020-11-29 18:54:46,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:46,778 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 205 transitions. [2020-11-29 18:54:46,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 205 transitions. [2020-11-29 18:54:46,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:54:46,780 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:46,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:46,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:54:46,780 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:46,781 INFO L82 PathProgramCache]: Analyzing trace with hash -322645340, now seen corresponding path program 1 times [2020-11-29 18:54:46,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:46,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850323386] [2020-11-29 18:54:46,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:54:46,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850323386] [2020-11-29 18:54:46,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:46,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:54:46,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046334084] [2020-11-29 18:54:46,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:46,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:46,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:46,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:46,874 INFO L87 Difference]: Start difference. First operand 159 states and 205 transitions. Second operand 5 states. [2020-11-29 18:54:46,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:46,960 INFO L93 Difference]: Finished difference Result 333 states and 430 transitions. [2020-11-29 18:54:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:54:46,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-29 18:54:46,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:46,962 INFO L225 Difference]: With dead ends: 333 [2020-11-29 18:54:46,962 INFO L226 Difference]: Without dead ends: 180 [2020-11-29 18:54:46,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:54:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-29 18:54:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 135. [2020-11-29 18:54:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-29 18:54:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2020-11-29 18:54:46,980 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 51 [2020-11-29 18:54:46,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:46,980 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2020-11-29 18:54:46,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2020-11-29 18:54:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-29 18:54:46,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:46,981 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:46,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:54:46,982 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:46,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1172394648, now seen corresponding path program 1 times [2020-11-29 18:54:46,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:46,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906912769] [2020-11-29 18:54:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:47,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906912769] [2020-11-29 18:54:47,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39242887] [2020-11-29 18:54:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:54:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:47,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:54:47,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:47,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:54:47,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-29 18:54:47,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206463874] [2020-11-29 18:54:47,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 18:54:47,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:47,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:54:47,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:54:47,399 INFO L87 Difference]: Start difference. First operand 135 states and 170 transitions. Second operand 8 states. [2020-11-29 18:54:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:47,807 INFO L93 Difference]: Finished difference Result 516 states and 669 transitions. [2020-11-29 18:54:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 18:54:47,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-11-29 18:54:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:47,811 INFO L225 Difference]: With dead ends: 516 [2020-11-29 18:54:47,811 INFO L226 Difference]: Without dead ends: 411 [2020-11-29 18:54:47,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-29 18:54:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-29 18:54:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 189. [2020-11-29 18:54:47,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-29 18:54:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 241 transitions. [2020-11-29 18:54:47,840 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 241 transitions. Word has length 52 [2020-11-29 18:54:47,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:47,842 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 241 transitions. [2020-11-29 18:54:47,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 18:54:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 241 transitions. [2020-11-29 18:54:47,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 18:54:47,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:47,843 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:48,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-29 18:54:48,063 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:48,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:48,064 INFO L82 PathProgramCache]: Analyzing trace with hash 986473432, now seen corresponding path program 2 times [2020-11-29 18:54:48,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:48,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667189235] [2020-11-29 18:54:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 18:54:48,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667189235] [2020-11-29 18:54:48,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:48,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:54:48,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472080266] [2020-11-29 18:54:48,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:48,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:48,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:48,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:54:48,256 INFO L87 Difference]: Start difference. First operand 189 states and 241 transitions. Second operand 5 states. [2020-11-29 18:54:48,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:48,717 INFO L93 Difference]: Finished difference Result 584 states and 755 transitions. [2020-11-29 18:54:48,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:54:48,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-29 18:54:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:48,720 INFO L225 Difference]: With dead ends: 584 [2020-11-29 18:54:48,720 INFO L226 Difference]: Without dead ends: 424 [2020-11-29 18:54:48,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:54:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-11-29 18:54:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 265. [2020-11-29 18:54:48,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-11-29 18:54:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 336 transitions. [2020-11-29 18:54:48,761 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 336 transitions. Word has length 73 [2020-11-29 18:54:48,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:48,761 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 336 transitions. [2020-11-29 18:54:48,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 336 transitions. [2020-11-29 18:54:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 18:54:48,763 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:54:48,763 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:54:48,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 18:54:48,763 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:54:48,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:48,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1261233046, now seen corresponding path program 1 times [2020-11-29 18:54:48,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:48,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955891794] [2020-11-29 18:54:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 18:54:48,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955891794] [2020-11-29 18:54:48,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832106063] [2020-11-29 18:54:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:54:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:49,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:54:49,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 18:54:49,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:54:49,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-29 18:54:49,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122330305] [2020-11-29 18:54:49,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:54:49,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:49,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:54:49,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:54:49,109 INFO L87 Difference]: Start difference. First operand 265 states and 336 transitions. Second operand 5 states. [2020-11-29 18:54:49,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:49,208 INFO L93 Difference]: Finished difference Result 468 states and 590 transitions. [2020-11-29 18:54:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:54:49,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-29 18:54:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:54:49,209 INFO L225 Difference]: With dead ends: 468 [2020-11-29 18:54:49,209 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:54:49,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-29 18:54:49,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:54:49,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:54:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:54:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:54:49,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-11-29 18:54:49,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:54:49,210 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:54:49,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:54:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:54:49,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:54:49,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 18:54:49,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:54:49,736 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 113 [2020-11-29 18:54:49,875 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 97 [2020-11-29 18:54:50,289 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 109 [2020-11-29 18:54:50,626 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 109 [2020-11-29 18:54:50,838 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 105 [2020-11-29 18:54:51,065 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 125 [2020-11-29 18:54:51,518 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 19 [2020-11-29 18:54:51,814 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 28 [2020-11-29 18:54:52,111 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 24 [2020-11-29 18:54:52,405 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 19 [2020-11-29 18:54:52,898 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 19 [2020-11-29 18:54:53,236 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 27 [2020-11-29 18:54:53,596 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 19 [2020-11-29 18:54:53,999 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 15 [2020-11-29 18:54:54,517 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 25 [2020-11-29 18:54:54,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,520 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,520 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,520 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,520 INFO L270 CegarLoopResult]: At program point L268(lines 259 272) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L268-1(lines 259 272) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L268-2(lines 259 272) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L268-3(lines 259 272) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L268-4(lines 259 272) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L268-5(lines 259 272) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L335(lines 335 341) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse2 (<= 2 ~waterLevel~0) .cse1) (and .cse2 .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L335-1(lines 335 341) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L335-2(lines 335 341) the Hoare annotation is: false [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 18:54:54,521 INFO L270 CegarLoopResult]: At program point L305(lines 1 973) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 18:54:54,522 INFO L277 CegarLoopResult]: At program point L141(lines 122 144) the Hoare annotation is: true [2020-11-29 18:54:54,522 INFO L274 CegarLoopResult]: For program point L604(line 604) no Hoare annotation was computed. [2020-11-29 18:54:54,522 INFO L274 CegarLoopResult]: For program point L604-1(line 604) no Hoare annotation was computed. [2020-11-29 18:54:54,522 INFO L274 CegarLoopResult]: For program point L604-2(line 604) no Hoare annotation was computed. [2020-11-29 18:54:54,522 INFO L270 CegarLoopResult]: At program point L439(lines 434 442) the Hoare annotation is: (and (= 0 ~systemActive~0) (= |ULTIMATE.start_isPumpRunning_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-29 18:54:54,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,522 INFO L270 CegarLoopResult]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2020-11-29 18:54:54,523 INFO L270 CegarLoopResult]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507-2(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507-3(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507-5(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507-6(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L507-8(lines 507 511) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L274 CegarLoopResult]: For program point L210(lines 210 214) no Hoare annotation was computed. [2020-11-29 18:54:54,523 INFO L270 CegarLoopResult]: At program point L278(lines 273 281) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-29 18:54:54,523 INFO L270 CegarLoopResult]: At program point L278-1(lines 273 281) the Hoare annotation is: false [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L278-2(lines 273 281) the Hoare annotation is: false [2020-11-29 18:54:54,524 INFO L274 CegarLoopResult]: For program point L544(lines 543 590) no Hoare annotation was computed. [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L313(lines 308 316) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-29 18:54:54,524 INFO L274 CegarLoopResult]: For program point L545(lines 545 549) no Hoare annotation was computed. [2020-11-29 18:54:54,524 INFO L274 CegarLoopResult]: For program point L579(lines 579 585) no Hoare annotation was computed. [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L579-1(lines 328 334) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L513(lines 498 516) the Hoare annotation is: (and (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|)) [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L513-1(lines 498 516) the Hoare annotation is: false [2020-11-29 18:54:54,524 INFO L270 CegarLoopResult]: At program point L513-2(lines 498 516) the Hoare annotation is: false [2020-11-29 18:54:54,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L186(lines 186 190) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L186-3(lines 186 190) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L186-6(lines 186 190) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L386(lines 386 403) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L386-1(lines 386 403) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L386-2(lines 386 403) no Hoare annotation was computed. [2020-11-29 18:54:54,525 INFO L270 CegarLoopResult]: At program point L255(lines 250 258) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= 0 ~systemActive~0) .cse3 .cse1))) [2020-11-29 18:54:54,525 INFO L270 CegarLoopResult]: At program point L255-1(lines 250 258) the Hoare annotation is: false [2020-11-29 18:54:54,525 INFO L270 CegarLoopResult]: At program point L255-2(lines 250 258) the Hoare annotation is: false [2020-11-29 18:54:54,525 INFO L274 CegarLoopResult]: For program point L553(lines 553 559) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L270 CegarLoopResult]: At program point L553-1(lines 553 559) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L157(lines 157 170) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L270 CegarLoopResult]: At program point L157-1(lines 1 973) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse2 .cse3 (<= 2 ~waterLevel~0) .cse1 .cse4) (and (= ~waterLevel~0 1) .cse2 .cse0 .cse1) (and .cse2 .cse3 .cse0 .cse1 (<= 1 ~waterLevel~0) .cse4))) [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L157-2(lines 157 170) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L270 CegarLoopResult]: At program point L157-3(lines 1 973) the Hoare annotation is: false [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L58-1(lines 328 334) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L157-4(lines 157 170) no Hoare annotation was computed. [2020-11-29 18:54:54,526 INFO L270 CegarLoopResult]: At program point L157-5(lines 1 973) the Hoare annotation is: false [2020-11-29 18:54:54,526 INFO L274 CegarLoopResult]: For program point L521(lines 521 527) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L270 CegarLoopResult]: At program point L521-1(lines 521 527) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-3(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-5(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-6(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-8(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-9(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-11(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-12(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-14(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-15(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L488-17(lines 488 492) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L390(lines 390 398) no Hoare annotation was computed. [2020-11-29 18:54:54,527 INFO L274 CegarLoopResult]: For program point L390-1(lines 390 398) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L390-2(lines 390 398) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L161(lines 161 167) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L161-2(lines 161 167) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L161-4(lines 161 167) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L270 CegarLoopResult]: At program point L591(lines 542 592) the Hoare annotation is: false [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360-1(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360-2(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360-3(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360-4(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L274 CegarLoopResult]: For program point L360-5(lines 360 377) no Hoare annotation was computed. [2020-11-29 18:54:54,528 INFO L270 CegarLoopResult]: At program point L328(lines 327 346) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) (= ~pumpRunning~0 0) .cse0) (and (= 1 ~systemActive~0) .cse0 (<= 1 ~waterLevel~0)))) [2020-11-29 18:54:54,529 INFO L274 CegarLoopResult]: For program point L328-1(lines 328 334) no Hoare annotation was computed. [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L328-2(lines 327 346) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L328-3(lines 327 346) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494(lines 479 497) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494-1(lines 479 497) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (.cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (not .cse1) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 .cse4 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494-2(lines 479 497) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494-3(lines 479 497) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494-4(lines 479 497) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L270 CegarLoopResult]: At program point L494-5(lines 479 497) the Hoare annotation is: false [2020-11-29 18:54:54,529 INFO L274 CegarLoopResult]: For program point L263(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,529 INFO L274 CegarLoopResult]: For program point L263-1(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,529 INFO L274 CegarLoopResult]: For program point L263-2(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,529 INFO L274 CegarLoopResult]: For program point L263-3(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L263-4(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L263-5(lines 263 269) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L198(lines 198 202) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L277 CegarLoopResult]: At program point L132-1(lines 132 139) the Hoare annotation is: true [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364-1(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364-2(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364-3(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364-4(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,530 INFO L274 CegarLoopResult]: For program point L364-5(lines 364 372) no Hoare annotation was computed. [2020-11-29 18:54:54,531 INFO L274 CegarLoopResult]: For program point L563(lines 563 569) no Hoare annotation was computed. [2020-11-29 18:54:54,531 INFO L270 CegarLoopResult]: At program point L563-1(lines 563 569) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-29 18:54:54,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:54:54 BoogieIcfgContainer [2020-11-29 18:54:54,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:54:54,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:54:54,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:54:54,583 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:54:54,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:54:43" (3/4) ... [2020-11-29 18:54:54,587 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:54:54,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-29 18:54:54,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 18:54:54,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 18:54:54,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 18:54:54,614 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:54:54,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:54:54,616 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:54:54,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 1 <= tmp) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-11-29 18:54:54,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-11-29 18:54:54,646 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) [2020-11-29 18:54:54,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-29 18:54:54,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-29 18:54:54,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-29 18:54:54,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 0 && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result [2020-11-29 18:54:54,649 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && tmp___0 == 0) && !(tmp == 0)) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-29 18:54:54,745 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a896928-0971-4a25-8b69-647c0bed5f49/bin/uautomizer/witness.graphml [2020-11-29 18:54:54,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:54:54,746 INFO L168 Benchmark]: Toolchain (without parser) took 13370.49 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 65.5 MB in the beginning and 171.2 MB in the end (delta: -105.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,747 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory was 29.5 MB in the beginning and 29.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:54:54,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.40 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 64.3 MB in the end (delta: 839.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.46 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 60.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,751 INFO L168 Benchmark]: Boogie Preprocessor took 79.53 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 57.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,751 INFO L168 Benchmark]: RCFGBuilder took 1279.94 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 41.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,752 INFO L168 Benchmark]: TraceAbstraction took 11064.70 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 40.5 MB in the beginning and 181.7 MB in the end (delta: -141.2 MB). Peak memory consumption was 104.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,752 INFO L168 Benchmark]: Witness Printer took 162.57 ms. Allocated memory is still 232.8 MB. Free memory was 181.7 MB in the beginning and 171.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:54,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory was 29.5 MB in the beginning and 29.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 642.40 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 64.3 MB in the end (delta: 839.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.46 ms. Allocated memory is still 98.6 MB. Free memory was 64.3 MB in the beginning and 60.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.53 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 57.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1279.94 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 41.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11064.70 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 40.5 MB in the beginning and 181.7 MB in the end (delta: -141.2 MB). Peak memory consumption was 104.6 MB. Max. memory is 16.1 GB. * Witness Printer took 162.57 ms. Allocated memory is still 232.8 MB. Free memory was 181.7 MB in the beginning and 171.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 1 <= tmp) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: (((((tmp == 0 && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && tmp___0 == 0) && !(tmp == 0)) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((0 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1635 SDtfs, 1992 SDslu, 2640 SDs, 0 SdLazy, 407 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 1633 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 162 NumberOfFragments, 465 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1179822 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 44 FomulaSimplificationsInter, 141145 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 678 ConstructedInterpolants, 0 QuantifiedInterpolants, 55000 SizeOfPredicates, 8 NumberOfNonLiveVariables, 899 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 200/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...