./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.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_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/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 e45e56c1689a2d141d3728e45b37f6229eb5b2a7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:43:46,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:43:46,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:43:46,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:43:46,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:43:46,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:43:46,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:43:46,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:43:46,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:43:46,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:43:46,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:43:46,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:43:46,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:43:46,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:43:46,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:43:46,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:43:46,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:43:46,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:43:46,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:43:46,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:43:46,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:43:46,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:43:46,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:43:46,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:43:46,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:43:46,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:43:46,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:43:46,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:43:46,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:43:46,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:43:46,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:43:46,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:43:46,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:43:46,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:43:46,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:43:46,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:43:46,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:43:46,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:43:46,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:43:46,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:43:46,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:43:46,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:43:46,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:43:46,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:43:46,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:43:46,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:43:46,945 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:43:46,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:43:46,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:43:46,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:43:46,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:43:46,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:43:46,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:43:46,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:43:46,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:43:46,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:43:46,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:43:46,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:43:46,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:43:46,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:43:46,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:43:46,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:43:46,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:43:46,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:43:46,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:43:46,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:43:46,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:43:46,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:43:46,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:43:46,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:43:46,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:43:46,952 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_2c2aad83-010a-4a2a-85c9-4b047c4e6241/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e45e56c1689a2d141d3728e45b37f6229eb5b2a7 [2020-11-29 19:43:47,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:43:47,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:43:47,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:43:47,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:43:47,377 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:43:47,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-11-29 19:43:47,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/data/b8cdc97d2/55fa962f8ed34bc496cc4c347ec40364/FLAG467ab41a0 [2020-11-29 19:43:48,049 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:43:48,050 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-11-29 19:43:48,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/data/b8cdc97d2/55fa962f8ed34bc496cc4c347ec40364/FLAG467ab41a0 [2020-11-29 19:43:48,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/data/b8cdc97d2/55fa962f8ed34bc496cc4c347ec40364 [2020-11-29 19:43:48,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:43:48,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:43:48,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:48,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:43:48,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:43:48,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:48,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7a091b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48, skipping insertion in model container [2020-11-29 19:43:48,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:48,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:43:48,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:43:48,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:48,787 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:43:48,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:48,963 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:43:48,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48 WrapperNode [2020-11-29 19:43:48,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:48,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:48,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:43:48,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:43:48,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:49,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:43:49,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:43:49,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:43:49,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... [2020-11-29 19:43:49,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:43:49,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:43:49,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:43:49,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:43:49,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/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 19:43:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:43:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:43:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:43:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:43:50,716 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:43:50,717 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-29 19:43:50,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:50 BoogieIcfgContainer [2020-11-29 19:43:50,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:43:50,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:43:50,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:43:50,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:43:50,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:43:48" (1/3) ... [2020-11-29 19:43:50,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d16072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:43:50, skipping insertion in model container [2020-11-29 19:43:50,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:48" (2/3) ... [2020-11-29 19:43:50,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d16072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:43:50, skipping insertion in model container [2020-11-29 19:43:50,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:50" (3/3) ... [2020-11-29 19:43:50,734 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2020-11-29 19:43:50,751 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:43:50,757 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 19:43:50,771 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 19:43:50,811 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:43:50,812 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:43:50,812 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:43:50,812 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:43:50,812 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:43:50,812 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:43:50,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:43:50,813 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:43:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-11-29 19:43:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:43:50,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:50,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:50,853 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:50,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:50,865 INFO L82 PathProgramCache]: Analyzing trace with hash -738998692, now seen corresponding path program 1 times [2020-11-29 19:43:50,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:50,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691128174] [2020-11-29 19:43:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:51,221 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 19:43:51,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691128174] [2020-11-29 19:43:51,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:51,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:43:51,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412530223] [2020-11-29 19:43:51,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:43:51,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:51,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:43:51,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:43:51,246 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-11-29 19:43:51,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:51,292 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-11-29 19:43:51,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:43:51,294 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 19:43:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:51,318 INFO L225 Difference]: With dead ends: 271 [2020-11-29 19:43:51,318 INFO L226 Difference]: Without dead ends: 133 [2020-11-29 19:43:51,322 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 19:43:51,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-29 19:43:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-11-29 19:43:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-29 19:43:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-11-29 19:43:51,388 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2020-11-29 19:43:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:51,389 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-11-29 19:43:51,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:43:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-11-29 19:43:51,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:43:51,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:51,392 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 19:43:51,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:43:51,393 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:51,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1785755589, now seen corresponding path program 1 times [2020-11-29 19:43:51,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:51,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222286933] [2020-11-29 19:43:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:51,546 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 19:43:51,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222286933] [2020-11-29 19:43:51,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:51,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:43:51,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544081293] [2020-11-29 19:43:51,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:43:51,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:51,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:43:51,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:43:51,551 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-11-29 19:43:51,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:51,577 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-11-29 19:43:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:43:51,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 19:43:51,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:51,582 INFO L225 Difference]: With dead ends: 133 [2020-11-29 19:43:51,583 INFO L226 Difference]: Without dead ends: 55 [2020-11-29 19:43:51,585 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 19:43:51,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-29 19:43:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-29 19:43:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-29 19:43:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-11-29 19:43:51,596 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2020-11-29 19:43:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:51,597 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-11-29 19:43:51,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:43:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-11-29 19:43:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 19:43:51,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:51,598 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 19:43:51,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:43:51,599 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:51,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:51,600 INFO L82 PathProgramCache]: Analyzing trace with hash 934734913, now seen corresponding path program 1 times [2020-11-29 19:43:51,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:51,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118272740] [2020-11-29 19:43:51,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:51,729 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 19:43:51,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118272740] [2020-11-29 19:43:51,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:51,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:51,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597712150] [2020-11-29 19:43:51,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:51,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:51,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:51,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:51,732 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 5 states. [2020-11-29 19:43:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:51,833 INFO L93 Difference]: Finished difference Result 127 states and 186 transitions. [2020-11-29 19:43:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:43:51,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 19:43:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:51,836 INFO L225 Difference]: With dead ends: 127 [2020-11-29 19:43:51,836 INFO L226 Difference]: Without dead ends: 78 [2020-11-29 19:43:51,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:43:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-29 19:43:51,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2020-11-29 19:43:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-29 19:43:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2020-11-29 19:43:51,862 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2020-11-29 19:43:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:51,863 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2020-11-29 19:43:51,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2020-11-29 19:43:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 19:43:51,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:51,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:51,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:43:51,865 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2102865864, now seen corresponding path program 1 times [2020-11-29 19:43:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:51,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629913645] [2020-11-29 19:43:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:51,960 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 19:43:51,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629913645] [2020-11-29 19:43:51,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:51,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:43:51,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297061457] [2020-11-29 19:43:51,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:43:51,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:51,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:43:51,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:43:51,963 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand 3 states. [2020-11-29 19:43:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:52,123 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2020-11-29 19:43:52,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:43:52,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 19:43:52,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:52,133 INFO L225 Difference]: With dead ends: 163 [2020-11-29 19:43:52,133 INFO L226 Difference]: Without dead ends: 95 [2020-11-29 19:43:52,134 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 19:43:52,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-29 19:43:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-11-29 19:43:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-29 19:43:52,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2020-11-29 19:43:52,155 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2020-11-29 19:43:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:52,155 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2020-11-29 19:43:52,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:43:52,156 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2020-11-29 19:43:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:43:52,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:52,166 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 19:43:52,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:43:52,167 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:52,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:52,167 INFO L82 PathProgramCache]: Analyzing trace with hash 379959382, now seen corresponding path program 1 times [2020-11-29 19:43:52,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:52,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200621006] [2020-11-29 19:43:52,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:52,328 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 19:43:52,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200621006] [2020-11-29 19:43:52,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:52,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:43:52,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552618107] [2020-11-29 19:43:52,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:43:52,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:52,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:43:52,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:43:52,331 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand 8 states. [2020-11-29 19:43:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:52,928 INFO L93 Difference]: Finished difference Result 599 states and 872 transitions. [2020-11-29 19:43:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 19:43:52,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-29 19:43:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:52,935 INFO L225 Difference]: With dead ends: 599 [2020-11-29 19:43:52,940 INFO L226 Difference]: Without dead ends: 512 [2020-11-29 19:43:52,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-29 19:43:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-11-29 19:43:53,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 231. [2020-11-29 19:43:53,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-29 19:43:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 322 transitions. [2020-11-29 19:43:53,024 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 322 transitions. Word has length 25 [2020-11-29 19:43:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:53,024 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 322 transitions. [2020-11-29 19:43:53,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:43:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 322 transitions. [2020-11-29 19:43:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-29 19:43:53,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:53,034 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:53,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:43:53,034 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:53,036 INFO L82 PathProgramCache]: Analyzing trace with hash 382518124, now seen corresponding path program 1 times [2020-11-29 19:43:53,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:53,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105287239] [2020-11-29 19:43:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:43:53,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105287239] [2020-11-29 19:43:53,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421659882] [2020-11-29 19:43:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/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 19:43:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:53,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 19:43:53,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:43:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:43:53,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:43:53,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-29 19:43:53,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018537636] [2020-11-29 19:43:53,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:43:53,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:53,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:43:53,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:53,462 INFO L87 Difference]: Start difference. First operand 231 states and 322 transitions. Second operand 4 states. [2020-11-29 19:43:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:53,666 INFO L93 Difference]: Finished difference Result 516 states and 733 transitions. [2020-11-29 19:43:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:43:53,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-29 19:43:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:53,670 INFO L225 Difference]: With dead ends: 516 [2020-11-29 19:43:53,670 INFO L226 Difference]: Without dead ends: 353 [2020-11-29 19:43:53,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 19:43:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-11-29 19:43:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2020-11-29 19:43:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-11-29 19:43:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 481 transitions. [2020-11-29 19:43:53,719 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 481 transitions. Word has length 41 [2020-11-29 19:43:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:53,719 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 481 transitions. [2020-11-29 19:43:53,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:43:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 481 transitions. [2020-11-29 19:43:53,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-29 19:43:53,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:53,725 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, 1, 1] [2020-11-29 19:43:53,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-29 19:43:53,957 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:53,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:53,958 INFO L82 PathProgramCache]: Analyzing trace with hash -566412756, now seen corresponding path program 1 times [2020-11-29 19:43:53,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:53,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342217363] [2020-11-29 19:43:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:54,043 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 19:43:54,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342217363] [2020-11-29 19:43:54,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:54,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:54,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50207176] [2020-11-29 19:43:54,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:54,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:54,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:54,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:54,049 INFO L87 Difference]: Start difference. First operand 341 states and 481 transitions. Second operand 5 states. [2020-11-29 19:43:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:54,200 INFO L93 Difference]: Finished difference Result 1051 states and 1472 transitions. [2020-11-29 19:43:54,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:43:54,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-11-29 19:43:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:54,207 INFO L225 Difference]: With dead ends: 1051 [2020-11-29 19:43:54,208 INFO L226 Difference]: Without dead ends: 716 [2020-11-29 19:43:54,209 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 19:43:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-29 19:43:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 362. [2020-11-29 19:43:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-11-29 19:43:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 502 transitions. [2020-11-29 19:43:54,264 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 502 transitions. Word has length 53 [2020-11-29 19:43:54,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:54,264 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 502 transitions. [2020-11-29 19:43:54,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 502 transitions. [2020-11-29 19:43:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-29 19:43:54,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:54,266 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, 1, 1] [2020-11-29 19:43:54,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:43:54,268 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash -638799314, now seen corresponding path program 1 times [2020-11-29 19:43:54,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:54,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290517450] [2020-11-29 19:43:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:54,381 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 19:43:54,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290517450] [2020-11-29 19:43:54,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:54,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:43:54,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726624484] [2020-11-29 19:43:54,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:43:54,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:54,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:43:54,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:43:54,383 INFO L87 Difference]: Start difference. First operand 362 states and 502 transitions. Second operand 4 states. [2020-11-29 19:43:54,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:54,489 INFO L93 Difference]: Finished difference Result 840 states and 1169 transitions. [2020-11-29 19:43:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:43:54,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-11-29 19:43:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:54,494 INFO L225 Difference]: With dead ends: 840 [2020-11-29 19:43:54,494 INFO L226 Difference]: Without dead ends: 484 [2020-11-29 19:43:54,496 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 19:43:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-11-29 19:43:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 316. [2020-11-29 19:43:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-11-29 19:43:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 434 transitions. [2020-11-29 19:43:54,535 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 434 transitions. Word has length 53 [2020-11-29 19:43:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:54,535 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 434 transitions. [2020-11-29 19:43:54,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:43:54,535 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 434 transitions. [2020-11-29 19:43:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 19:43:54,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:54,538 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, 1, 1] [2020-11-29 19:43:54,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:43:54,538 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:54,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1204098062, now seen corresponding path program 1 times [2020-11-29 19:43:54,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:54,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955858886] [2020-11-29 19:43:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 19:43:54,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955858886] [2020-11-29 19:43:54,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:54,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:54,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087732606] [2020-11-29 19:43:54,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:54,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:54,666 INFO L87 Difference]: Start difference. First operand 316 states and 434 transitions. Second operand 5 states. [2020-11-29 19:43:54,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:54,819 INFO L93 Difference]: Finished difference Result 1158 states and 1614 transitions. [2020-11-29 19:43:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:43:54,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-29 19:43:54,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:54,827 INFO L225 Difference]: With dead ends: 1158 [2020-11-29 19:43:54,827 INFO L226 Difference]: Without dead ends: 890 [2020-11-29 19:43:54,828 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 19:43:54,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-11-29 19:43:54,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 322. [2020-11-29 19:43:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-29 19:43:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 440 transitions. [2020-11-29 19:43:54,899 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 440 transitions. Word has length 54 [2020-11-29 19:43:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:54,901 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 440 transitions. [2020-11-29 19:43:54,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 440 transitions. [2020-11-29 19:43:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 19:43:54,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:54,906 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, 1, 1] [2020-11-29 19:43:54,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 19:43:54,907 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:54,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:54,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1597125072, now seen corresponding path program 1 times [2020-11-29 19:43:54,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:54,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756451912] [2020-11-29 19:43:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 19:43:54,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756451912] [2020-11-29 19:43:54,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:54,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:54,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197510701] [2020-11-29 19:43:54,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:54,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:54,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:54,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:54,999 INFO L87 Difference]: Start difference. First operand 322 states and 440 transitions. Second operand 5 states. [2020-11-29 19:43:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:55,255 INFO L93 Difference]: Finished difference Result 859 states and 1177 transitions. [2020-11-29 19:43:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:43:55,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-29 19:43:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:55,262 INFO L225 Difference]: With dead ends: 859 [2020-11-29 19:43:55,262 INFO L226 Difference]: Without dead ends: 857 [2020-11-29 19:43:55,263 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 19:43:55,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-11-29 19:43:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 322. [2020-11-29 19:43:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-29 19:43:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 435 transitions. [2020-11-29 19:43:55,317 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 435 transitions. Word has length 54 [2020-11-29 19:43:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:55,317 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 435 transitions. [2020-11-29 19:43:55,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 435 transitions. [2020-11-29 19:43:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 19:43:55,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:55,318 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, 1, 1, 1] [2020-11-29 19:43:55,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 19:43:55,319 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash 632976081, now seen corresponding path program 1 times [2020-11-29 19:43:55,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:55,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984544481] [2020-11-29 19:43:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:55,412 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 19:43:55,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984544481] [2020-11-29 19:43:55,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190738568] [2020-11-29 19:43:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/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 19:43:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:55,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:43:55,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:43:55,686 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 19:43:55,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:43:55,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-29 19:43:55,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958573238] [2020-11-29 19:43:55,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:43:55,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:43:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:43:55,689 INFO L87 Difference]: Start difference. First operand 322 states and 435 transitions. Second operand 6 states. [2020-11-29 19:43:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:56,030 INFO L93 Difference]: Finished difference Result 722 states and 975 transitions. [2020-11-29 19:43:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:43:56,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-29 19:43:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:56,036 INFO L225 Difference]: With dead ends: 722 [2020-11-29 19:43:56,036 INFO L226 Difference]: Without dead ends: 448 [2020-11-29 19:43:56,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-29 19:43:56,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-11-29 19:43:56,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 284. [2020-11-29 19:43:56,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-29 19:43:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 377 transitions. [2020-11-29 19:43:56,076 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 377 transitions. Word has length 55 [2020-11-29 19:43:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:56,078 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 377 transitions. [2020-11-29 19:43:56,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:43:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 377 transitions. [2020-11-29 19:43:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-29 19:43:56,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:56,080 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, 1, 1, 1] [2020-11-29 19:43:56,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:43:56,300 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:56,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1692954639, now seen corresponding path program 2 times [2020-11-29 19:43:56,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:56,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856802615] [2020-11-29 19:43:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:56,531 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 19:43:56,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856802615] [2020-11-29 19:43:56,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:56,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:56,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302010258] [2020-11-29 19:43:56,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:56,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:56,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:56,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:56,534 INFO L87 Difference]: Start difference. First operand 284 states and 377 transitions. Second operand 5 states. [2020-11-29 19:43:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:56,906 INFO L93 Difference]: Finished difference Result 833 states and 1123 transitions. [2020-11-29 19:43:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:43:56,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-29 19:43:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:56,911 INFO L225 Difference]: With dead ends: 833 [2020-11-29 19:43:56,911 INFO L226 Difference]: Without dead ends: 596 [2020-11-29 19:43:56,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:43:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-11-29 19:43:56,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 385. [2020-11-29 19:43:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-11-29 19:43:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 511 transitions. [2020-11-29 19:43:56,969 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 511 transitions. Word has length 76 [2020-11-29 19:43:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:56,969 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 511 transitions. [2020-11-29 19:43:56,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 511 transitions. [2020-11-29 19:43:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-29 19:43:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:43:56,971 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, 1, 1, 1] [2020-11-29 19:43:56,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 19:43:56,972 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:43:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:56,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1418195025, now seen corresponding path program 1 times [2020-11-29 19:43:56,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:56,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679205334] [2020-11-29 19:43:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:57,074 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 19:43:57,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679205334] [2020-11-29 19:43:57,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:57,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:57,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706979660] [2020-11-29 19:43:57,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:43:57,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:57,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:57,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:57,081 INFO L87 Difference]: Start difference. First operand 385 states and 511 transitions. Second operand 5 states. [2020-11-29 19:43:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:57,193 INFO L93 Difference]: Finished difference Result 735 states and 976 transitions. [2020-11-29 19:43:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:43:57,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-29 19:43:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:43:57,194 INFO L225 Difference]: With dead ends: 735 [2020-11-29 19:43:57,194 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:43:57,195 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 19:43:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:43:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:43:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:43:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:43:57,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-11-29 19:43:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:43:57,196 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:43:57,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:43:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:43:57,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:43:57,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 19:43:57,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:43:57,850 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 182 [2020-11-29 19:43:58,298 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 109 [2020-11-29 19:43:58,471 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 111 [2020-11-29 19:43:58,911 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 176 [2020-11-29 19:43:59,360 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 177 [2020-11-29 19:43:59,690 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 150 [2020-11-29 19:44:00,112 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 182 [2020-11-29 19:44:00,562 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 176 [2020-11-29 19:44:02,015 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 180 DAG size of output: 31 [2020-11-29 19:44:02,375 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 24 [2020-11-29 19:44:02,973 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 20 [2020-11-29 19:44:03,998 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 25 [2020-11-29 19:44:04,873 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 24 [2020-11-29 19:44:05,190 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 23 [2020-11-29 19:44:05,819 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-11-29 19:44:06,777 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 31 [2020-11-29 19:44:06,945 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 29 [2020-11-29 19:44:07,773 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 23 [2020-11-29 19:44:07,776 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L663(lines 663 671) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696-2(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L663-1(lines 663 671) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L663-2(lines 663 671) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696-4(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696-6(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696-8(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,777 INFO L274 CegarLoopResult]: For program point L696-10(lines 696 702) no Hoare annotation was computed. [2020-11-29 19:44:07,778 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,778 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,778 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,778 INFO L274 CegarLoopResult]: For program point L862(lines 862 868) no Hoare annotation was computed. [2020-11-29 19:44:07,778 INFO L270 CegarLoopResult]: At program point L862-1(lines 862 868) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4)) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse5 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse5 .cse4 .cse2 .cse3))) [2020-11-29 19:44:07,778 INFO L270 CegarLoopResult]: At program point L730(lines 725 733) the Hoare annotation is: false [2020-11-29 19:44:07,778 INFO L270 CegarLoopResult]: At program point L730-1(lines 725 733) the Hoare annotation is: false [2020-11-29 19:44:07,779 INFO L270 CegarLoopResult]: At program point L730-2(lines 725 733) the Hoare annotation is: false [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L798(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L798-2(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L798-3(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L633(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L798-5(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L633-1(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,779 INFO L274 CegarLoopResult]: For program point L798-6(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,780 INFO L274 CegarLoopResult]: For program point L633-2(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,780 INFO L274 CegarLoopResult]: For program point L633-3(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,780 INFO L274 CegarLoopResult]: For program point L798-8(lines 798 802) no Hoare annotation was computed. [2020-11-29 19:44:07,781 INFO L274 CegarLoopResult]: For program point L633-4(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,781 INFO L274 CegarLoopResult]: For program point L633-5(lines 633 650) no Hoare annotation was computed. [2020-11-29 19:44:07,781 INFO L274 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-11-29 19:44:07,781 INFO L270 CegarLoopResult]: At program point L601(lines 600 619) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse0 (not (= 0 ~systemActive~0)) .cse2 (<= 1 ~waterLevel~0) .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-11-29 19:44:07,782 INFO L274 CegarLoopResult]: For program point L601-1(lines 601 607) no Hoare annotation was computed. [2020-11-29 19:44:07,782 INFO L270 CegarLoopResult]: At program point L601-2(lines 600 619) the Hoare annotation is: false [2020-11-29 19:44:07,782 INFO L270 CegarLoopResult]: At program point L601-3(lines 600 619) the Hoare annotation is: false [2020-11-29 19:44:07,782 INFO L270 CegarLoopResult]: At program point L999(lines 994 1002) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-11-29 19:44:07,782 INFO L270 CegarLoopResult]: At program point L999-1(lines 994 1002) the Hoare annotation is: false [2020-11-29 19:44:07,782 INFO L270 CegarLoopResult]: At program point L999-2(lines 994 1002) the Hoare annotation is: false [2020-11-29 19:44:07,783 INFO L270 CegarLoopResult]: At program point L75(lines 70 78) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-11-29 19:44:07,783 INFO L274 CegarLoopResult]: For program point L637(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,783 INFO L274 CegarLoopResult]: For program point L637-1(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,783 INFO L274 CegarLoopResult]: For program point L637-2(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,783 INFO L274 CegarLoopResult]: For program point L637-3(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,783 INFO L274 CegarLoopResult]: For program point L637-4(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,784 INFO L274 CegarLoopResult]: For program point L637-5(lines 637 645) no Hoare annotation was computed. [2020-11-29 19:44:07,784 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,784 INFO L277 CegarLoopResult]: At program point L176(lines 157 179) the Hoare annotation is: true [2020-11-29 19:44:07,784 INFO L270 CegarLoopResult]: At program point L143(lines 139 145) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) [2020-11-29 19:44:07,784 INFO L270 CegarLoopResult]: At program point L804(lines 789 807) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_main_~tmp~0 1) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-11-29 19:44:07,784 INFO L270 CegarLoopResult]: At program point L804-1(lines 789 807) the Hoare annotation is: false [2020-11-29 19:44:07,784 INFO L270 CegarLoopResult]: At program point L804-2(lines 789 807) the Hoare annotation is: false [2020-11-29 19:44:07,784 INFO L274 CegarLoopResult]: For program point L872(lines 872 887) no Hoare annotation was computed. [2020-11-29 19:44:07,785 INFO L270 CegarLoopResult]: At program point L608(lines 608 614) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse3 .cse4) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-11-29 19:44:07,785 INFO L270 CegarLoopResult]: At program point L608-1(lines 608 614) the Hoare annotation is: false [2020-11-29 19:44:07,785 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 614) the Hoare annotation is: false [2020-11-29 19:44:07,785 INFO L274 CegarLoopResult]: For program point L907(lines 907 911) no Hoare annotation was computed. [2020-11-29 19:44:07,785 INFO L274 CegarLoopResult]: For program point L907-3(lines 907 911) no Hoare annotation was computed. [2020-11-29 19:44:07,785 INFO L274 CegarLoopResult]: For program point L907-6(lines 907 911) no Hoare annotation was computed. [2020-11-29 19:44:07,786 INFO L274 CegarLoopResult]: For program point L843(lines 842 891) no Hoare annotation was computed. [2020-11-29 19:44:07,786 INFO L270 CegarLoopResult]: At program point L976(lines 971 979) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3) (and .cse0 (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2020-11-29 19:44:07,786 INFO L270 CegarLoopResult]: At program point L976-1(lines 971 979) the Hoare annotation is: false [2020-11-29 19:44:07,786 INFO L270 CegarLoopResult]: At program point L976-2(lines 971 979) the Hoare annotation is: false [2020-11-29 19:44:07,786 INFO L274 CegarLoopResult]: For program point L844(lines 844 848) no Hoare annotation was computed. [2020-11-29 19:44:07,787 INFO L274 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-11-29 19:44:07,787 INFO L274 CegarLoopResult]: For program point L580-1(line 580) no Hoare annotation was computed. [2020-11-29 19:44:07,787 INFO L274 CegarLoopResult]: For program point L580-2(line 580) no Hoare annotation was computed. [2020-11-29 19:44:07,787 INFO L270 CegarLoopResult]: At program point L944(lines 939 947) the Hoare annotation is: false [2020-11-29 19:44:07,787 INFO L270 CegarLoopResult]: At program point L944-1(lines 939 947) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-11-29 19:44:07,787 INFO L270 CegarLoopResult]: At program point L944-2(lines 939 947) the Hoare annotation is: false [2020-11-29 19:44:07,788 INFO L270 CegarLoopResult]: At program point L944-3(lines 939 947) the Hoare annotation is: false [2020-11-29 19:44:07,788 INFO L274 CegarLoopResult]: For program point L812(lines 812 818) no Hoare annotation was computed. [2020-11-29 19:44:07,788 INFO L270 CegarLoopResult]: At program point L944-4(lines 939 947) the Hoare annotation is: false [2020-11-29 19:44:07,788 INFO L270 CegarLoopResult]: At program point L812-1(lines 812 818) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-11-29 19:44:07,788 INFO L274 CegarLoopResult]: For program point L779(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,788 INFO L270 CegarLoopResult]: At program point L944-5(lines 939 947) the Hoare annotation is: false [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-2(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-3(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-5(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-6(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-8(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-9(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,789 INFO L274 CegarLoopResult]: For program point L779-11(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point L779-12(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point L779-14(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point L779-15(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point L779-17(lines 779 783) no Hoare annotation was computed. [2020-11-29 19:44:07,790 INFO L274 CegarLoopResult]: For program point L880(lines 880 886) no Hoare annotation was computed. [2020-11-29 19:44:07,791 INFO L270 CegarLoopResult]: At program point L880-1(lines 601 607) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse3 .cse4) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-11-29 19:44:07,791 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:44:07,791 INFO L270 CegarLoopResult]: At program point L785(lines 770 788) the Hoare annotation is: false [2020-11-29 19:44:07,791 INFO L270 CegarLoopResult]: At program point L785-1(lines 770 788) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| 1)))) [2020-11-29 19:44:07,791 INFO L270 CegarLoopResult]: At program point L785-2(lines 770 788) the Hoare annotation is: false [2020-11-29 19:44:07,791 INFO L270 CegarLoopResult]: At program point L785-3(lines 770 788) the Hoare annotation is: false [2020-11-29 19:44:07,792 INFO L270 CegarLoopResult]: At program point L785-4(lines 770 788) the Hoare annotation is: false [2020-11-29 19:44:07,792 INFO L270 CegarLoopResult]: At program point L785-5(lines 770 788) the Hoare annotation is: false [2020-11-29 19:44:07,792 INFO L270 CegarLoopResult]: At program point L92-2(lines 92 106) the Hoare annotation is: false [2020-11-29 19:44:07,792 INFO L274 CegarLoopResult]: For program point L984(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,792 INFO L274 CegarLoopResult]: For program point L984-1(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,792 INFO L274 CegarLoopResult]: For program point L984-2(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,793 INFO L274 CegarLoopResult]: For program point L984-3(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,793 INFO L274 CegarLoopResult]: For program point L852(lines 852 858) no Hoare annotation was computed. [2020-11-29 19:44:07,793 INFO L274 CegarLoopResult]: For program point L984-4(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,793 INFO L270 CegarLoopResult]: At program point L852-1(lines 852 858) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4)) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse5 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse5 .cse4 .cse2 .cse3))) [2020-11-29 19:44:07,793 INFO L274 CegarLoopResult]: For program point L984-5(lines 984 990) no Hoare annotation was computed. [2020-11-29 19:44:07,793 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-11-29 19:44:07,794 INFO L274 CegarLoopResult]: For program point L919(lines 919 923) no Hoare annotation was computed. [2020-11-29 19:44:07,794 INFO L270 CegarLoopResult]: At program point L721(lines 714 724) the Hoare annotation is: false [2020-11-29 19:44:07,794 INFO L270 CegarLoopResult]: At program point L721-1(lines 714 724) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-11-29 19:44:07,794 INFO L270 CegarLoopResult]: At program point L721-2(lines 714 724) the Hoare annotation is: false [2020-11-29 19:44:07,794 INFO L270 CegarLoopResult]: At program point L721-3(lines 714 724) the Hoare annotation is: false [2020-11-29 19:44:07,794 INFO L270 CegarLoopResult]: At program point L721-4(lines 714 724) the Hoare annotation is: false [2020-11-29 19:44:07,795 INFO L270 CegarLoopResult]: At program point L721-5(lines 714 724) the Hoare annotation is: false [2020-11-29 19:44:07,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:44:07,795 INFO L274 CegarLoopResult]: For program point L558(lines 558 571) no Hoare annotation was computed. [2020-11-29 19:44:07,795 INFO L270 CegarLoopResult]: At program point L558-1(lines 1 1002) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse6 (not (= 0 ~systemActive~0))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (.cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse6 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse6 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5))) [2020-11-29 19:44:07,795 INFO L274 CegarLoopResult]: For program point L558-2(lines 558 571) no Hoare annotation was computed. [2020-11-29 19:44:07,795 INFO L270 CegarLoopResult]: At program point L558-3(lines 1 1002) the Hoare annotation is: false [2020-11-29 19:44:07,796 INFO L274 CegarLoopResult]: For program point L558-4(lines 558 571) no Hoare annotation was computed. [2020-11-29 19:44:07,796 INFO L270 CegarLoopResult]: At program point L558-5(lines 1 1002) the Hoare annotation is: false [2020-11-29 19:44:07,796 INFO L274 CegarLoopResult]: For program point L96(lines 96 100) no Hoare annotation was computed. [2020-11-29 19:44:07,796 INFO L274 CegarLoopResult]: For program point L96-1(lines 601 607) no Hoare annotation was computed. [2020-11-29 19:44:07,796 INFO L270 CegarLoopResult]: At program point L989(lines 980 993) the Hoare annotation is: false [2020-11-29 19:44:07,797 INFO L270 CegarLoopResult]: At program point L989-1(lines 980 993) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 .cse2 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2020-11-29 19:44:07,797 INFO L270 CegarLoopResult]: At program point L989-2(lines 980 993) the Hoare annotation is: false [2020-11-29 19:44:07,797 INFO L270 CegarLoopResult]: At program point L989-3(lines 980 993) the Hoare annotation is: false [2020-11-29 19:44:07,797 INFO L270 CegarLoopResult]: At program point L989-4(lines 980 993) the Hoare annotation is: false [2020-11-29 19:44:07,797 INFO L270 CegarLoopResult]: At program point L989-5(lines 980 993) the Hoare annotation is: false [2020-11-29 19:44:07,797 INFO L274 CegarLoopResult]: For program point L659(lines 659 676) no Hoare annotation was computed. [2020-11-29 19:44:07,797 INFO L274 CegarLoopResult]: For program point L659-1(lines 659 676) no Hoare annotation was computed. [2020-11-29 19:44:07,798 INFO L274 CegarLoopResult]: For program point L659-2(lines 659 676) no Hoare annotation was computed. [2020-11-29 19:44:07,798 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:44:07,798 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:44:07,798 INFO L270 CegarLoopResult]: At program point L892(lines 841 893) the Hoare annotation is: false [2020-11-29 19:44:07,798 INFO L274 CegarLoopResult]: For program point L562(lines 562 568) no Hoare annotation was computed. [2020-11-29 19:44:07,798 INFO L274 CegarLoopResult]: For program point L562-2(lines 562 568) no Hoare annotation was computed. [2020-11-29 19:44:07,799 INFO L274 CegarLoopResult]: For program point L562-4(lines 562 568) no Hoare annotation was computed. [2020-11-29 19:44:07,799 INFO L270 CegarLoopResult]: At program point L67(lines 1 1002) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2020-11-29 19:44:07,799 INFO L274 CegarLoopResult]: For program point L167(lines 167 174) no Hoare annotation was computed. [2020-11-29 19:44:07,799 INFO L277 CegarLoopResult]: At program point L167-1(lines 167 174) the Hoare annotation is: true [2020-11-29 19:44:07,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:44:07 BoogieIcfgContainer [2020-11-29 19:44:07,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:44:07,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:44:07,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:44:07,866 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:44:07,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:50" (3/4) ... [2020-11-29 19:44:07,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:44:07,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-29 19:44:07,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 19:44:07,906 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 19:44:07,907 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 19:44:07,909 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:44:07,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:44:07,912 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:44:07,942 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 [2020-11-29 19:44:07,942 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == waterLevel [2020-11-29 19:44:07,943 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) && 1 <= tmp) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) [2020-11-29 19:44:07,943 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-11-29 19:44:07,945 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-11-29 19:44:07,946 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-11-29 19:44:07,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-11-29 19:44:07,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-11-29 19:44:07,948 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-11-29 19:44:07,950 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) [2020-11-29 19:44:07,951 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && \result == 0) && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-11-29 19:44:07,956 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-11-29 19:44:07,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && tmp == 1) && \result == 0) && tmp == 0) && !(0 == systemActive)) && tmp___0 == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-11-29 19:44:07,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp___0 == 0 && tmp == 1) && \result == waterLevel) && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-11-29 19:44:07,964 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 [2020-11-29 19:44:07,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 [2020-11-29 19:44:08,074 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c2aad83-010a-4a2a-85c9-4b047c4e6241/bin/uautomizer/witness.graphml [2020-11-29 19:44:08,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:44:08,075 INFO L168 Benchmark]: Toolchain (without parser) took 19749.15 ms. Allocated memory was 142.6 MB in the beginning and 299.9 MB in the end (delta: 157.3 MB). Free memory was 115.3 MB in the beginning and 105.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 165.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,076 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:44:08,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.92 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 107.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.36 ms. Allocated memory is still 142.6 MB. Free memory was 107.9 MB in the beginning and 103.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,077 INFO L168 Benchmark]: Boogie Preprocessor took 61.24 ms. Allocated memory is still 142.6 MB. Free memory was 103.7 MB in the beginning and 100.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,077 INFO L168 Benchmark]: RCFGBuilder took 1572.60 ms. Allocated memory is still 142.6 MB. Free memory was 100.7 MB in the beginning and 73.3 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,078 INFO L168 Benchmark]: TraceAbstraction took 17140.48 ms. Allocated memory was 142.6 MB in the beginning and 299.9 MB in the end (delta: 157.3 MB). Free memory was 72.6 MB in the beginning and 117.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 134.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,078 INFO L168 Benchmark]: Witness Printer took 208.87 ms. Allocated memory is still 299.9 MB. Free memory was 117.8 MB in the beginning and 105.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:08,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 637.92 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 107.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.36 ms. Allocated memory is still 142.6 MB. Free memory was 107.9 MB in the beginning and 103.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.24 ms. Allocated memory is still 142.6 MB. Free memory was 103.7 MB in the beginning and 100.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1572.60 ms. Allocated memory is still 142.6 MB. Free memory was 100.7 MB in the beginning and 73.3 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17140.48 ms. Allocated memory was 142.6 MB in the beginning and 299.9 MB in the end (delta: 157.3 MB). Free memory was 72.6 MB in the beginning and 117.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 134.1 MB. Max. memory is 16.1 GB. * Witness Printer took 208.87 ms. Allocated memory is still 299.9 MB. Free memory was 117.8 MB in the beginning and 105.2 MB in the end (delta: 12.6 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: 789]: Loop Invariant Derived loop invariant: (((((((\result == 1 && tmp == 1) && \result == 0) && tmp == 0) && !(0 == systemActive)) && tmp___0 == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == waterLevel - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: ((((tmp == 1 && \result == 0) && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: ((((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) && 1 <= tmp) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: (((((((((tmp___0 == 0 && tmp == 1) && \result == waterLevel) && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1588 SDtfs, 2564 SDslu, 2670 SDs, 0 SdLazy, 398 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 2299 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 200 NumberOfFragments, 708 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1647971 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 56 FomulaSimplificationsInter, 420463 FormulaSimplificationTreeSizeReductionInter, 7.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 52307 SizeOfPredicates, 4 NumberOfNonLiveVariables, 830 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 201/212 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...