./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3c61d639fd43ae1669bec68db6e5c2c107a6dc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:56,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:56,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:56,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:56,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:56,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:56,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:56,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:56,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:56,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:56,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:56,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:56,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:56,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:56,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:56,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:56,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:56,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:56,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:56,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:56,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:56,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:56,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:56,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:56,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:56,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:56,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:56,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:56,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:56,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:56,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:56,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:56,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:56,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:56,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:56,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:56,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:56,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:56,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:56,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:56,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:56,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:56,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:56,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:56,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:56,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:56,386 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:56,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:56,387 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:56,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:56,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:56,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:56,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:56,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:56,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:56,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:56,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:56,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:56,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:56,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:56,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:56,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:56,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:56,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:56,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:56,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/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(__VERIFIER_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 -> 9a3c61d639fd43ae1669bec68db6e5c2c107a6dc [2019-10-22 09:01:56,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:56,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:56,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:56,440 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:56,440 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:56,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2019-10-22 09:01:56,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/data/18cbdd365/2e992b53ff694aecba7016fe6ec29695/FLAGffc60dcf6 [2019-10-22 09:01:56,950 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:56,951 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2019-10-22 09:01:56,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/data/18cbdd365/2e992b53ff694aecba7016fe6ec29695/FLAGffc60dcf6 [2019-10-22 09:01:57,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/data/18cbdd365/2e992b53ff694aecba7016fe6ec29695 [2019-10-22 09:01:57,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:57,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:57,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:57,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:57,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:57,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634ad376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57, skipping insertion in model container [2019-10-22 09:01:57,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,280 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:57,336 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:57,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:57,741 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:57,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:57,853 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:57,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57 WrapperNode [2019-10-22 09:01:57,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:57,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:57,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:57,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:57,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:57,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:57,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:57,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:57,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:57,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:58,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:58,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:58,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... [2019-10-22 09:01:58,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:58,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:58,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:58,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:58,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/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 [2019-10-22 09:01:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:58,975 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:58,976 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 09:01:58,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:58 BoogieIcfgContainer [2019-10-22 09:01:58,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:58,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:58,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:58,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:58,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:57" (1/3) ... [2019-10-22 09:01:58,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efe05ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:58, skipping insertion in model container [2019-10-22 09:01:58,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:57" (2/3) ... [2019-10-22 09:01:58,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efe05ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:58, skipping insertion in model container [2019-10-22 09:01:58,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:58" (3/3) ... [2019-10-22 09:01:58,985 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2019-10-22 09:01:58,995 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:59,002 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:01:59,018 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:01:59,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:59,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:59,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:59,050 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:59,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:59,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:59,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:59,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 09:01:59,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:01:59,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:59,076 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:59,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:59,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1255950434, now seen corresponding path program 1 times [2019-10-22 09:01:59,092 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721579696] [2019-10-22 09:01:59,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:59,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721579696] [2019-10-22 09:01:59,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:59,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:59,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940541379] [2019-10-22 09:01:59,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:59,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:59,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:59,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:59,302 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 09:01:59,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:59,338 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2019-10-22 09:01:59,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:59,340 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 09:01:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:59,353 INFO L225 Difference]: With dead ends: 227 [2019-10-22 09:01:59,355 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 09:01:59,359 INFO L600 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 [2019-10-22 09:01:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 09:01:59,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 09:01:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 09:01:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions. [2019-10-22 09:01:59,400 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 18 [2019-10-22 09:01:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:59,400 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 166 transitions. [2019-10-22 09:01:59,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:59,401 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions. [2019-10-22 09:01:59,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:01:59,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:59,402 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:59,402 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:59,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1139511005, now seen corresponding path program 1 times [2019-10-22 09:01:59,403 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615859398] [2019-10-22 09:01:59,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:59,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615859398] [2019-10-22 09:01:59,522 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:59,522 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:59,522 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869066944] [2019-10-22 09:01:59,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:59,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:59,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:59,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:59,524 INFO L87 Difference]: Start difference. First operand 113 states and 166 transitions. Second operand 3 states. [2019-10-22 09:01:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:59,542 INFO L93 Difference]: Finished difference Result 113 states and 166 transitions. [2019-10-22 09:01:59,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:59,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:01:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:59,543 INFO L225 Difference]: With dead ends: 113 [2019-10-22 09:01:59,544 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 09:01:59,545 INFO L600 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 [2019-10-22 09:01:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 09:01:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-22 09:01:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 09:01:59,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-10-22 09:01:59,551 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-10-22 09:01:59,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:59,552 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-10-22 09:01:59,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:59,552 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-10-22 09:01:59,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:01:59,553 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:59,553 INFO L380 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] [2019-10-22 09:01:59,553 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:59,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,554 INFO L82 PathProgramCache]: Analyzing trace with hash 2074006335, now seen corresponding path program 1 times [2019-10-22 09:01:59,554 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552271158] [2019-10-22 09:01:59,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:59,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552271158] [2019-10-22 09:01:59,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:59,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:59,680 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658070944] [2019-10-22 09:01:59,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:59,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:59,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:59,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:59,681 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-10-22 09:01:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:59,715 INFO L93 Difference]: Finished difference Result 133 states and 199 transitions. [2019-10-22 09:01:59,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:59,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 09:01:59,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:59,717 INFO L225 Difference]: With dead ends: 133 [2019-10-22 09:01:59,717 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 09:01:59,717 INFO L600 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 [2019-10-22 09:01:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 09:01:59,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2019-10-22 09:01:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 09:01:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 130 transitions. [2019-10-22 09:01:59,733 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 130 transitions. Word has length 24 [2019-10-22 09:01:59,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:59,734 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 130 transitions. [2019-10-22 09:01:59,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2019-10-22 09:01:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:01:59,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:59,735 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:59,735 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1559751670, now seen corresponding path program 1 times [2019-10-22 09:01:59,736 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892410540] [2019-10-22 09:01:59,736 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:59,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892410540] [2019-10-22 09:01:59,858 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:59,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:59,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763607595] [2019-10-22 09:01:59,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:59,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:59,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:59,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:59,860 INFO L87 Difference]: Start difference. First operand 87 states and 130 transitions. Second operand 3 states. [2019-10-22 09:01:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:59,923 INFO L93 Difference]: Finished difference Result 210 states and 319 transitions. [2019-10-22 09:01:59,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:59,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 09:01:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:59,925 INFO L225 Difference]: With dead ends: 210 [2019-10-22 09:01:59,926 INFO L226 Difference]: Without dead ends: 130 [2019-10-22 09:01:59,926 INFO L600 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 [2019-10-22 09:01:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-22 09:01:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2019-10-22 09:01:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-22 09:01:59,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 188 transitions. [2019-10-22 09:01:59,947 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 188 transitions. Word has length 26 [2019-10-22 09:01:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:59,948 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 188 transitions. [2019-10-22 09:01:59,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:59,948 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 188 transitions. [2019-10-22 09:01:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 09:01:59,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:59,949 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:59,949 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:59,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:59,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1899452984, now seen corresponding path program 1 times [2019-10-22 09:01:59,950 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:59,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860963402] [2019-10-22 09:01:59,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:59,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:00,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860963402] [2019-10-22 09:02:00,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:00,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:00,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056121703] [2019-10-22 09:02:00,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:00,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:00,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:00,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:00,083 INFO L87 Difference]: Start difference. First operand 128 states and 188 transitions. Second operand 5 states. [2019-10-22 09:02:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:00,210 INFO L93 Difference]: Finished difference Result 628 states and 933 transitions. [2019-10-22 09:02:00,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:00,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 09:02:00,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:00,213 INFO L225 Difference]: With dead ends: 628 [2019-10-22 09:02:00,213 INFO L226 Difference]: Without dead ends: 507 [2019-10-22 09:02:00,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2019-10-22 09:02:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 235. [2019-10-22 09:02:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-10-22 09:02:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 340 transitions. [2019-10-22 09:02:00,262 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 340 transitions. Word has length 27 [2019-10-22 09:02:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:00,262 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 340 transitions. [2019-10-22 09:02:00,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 340 transitions. [2019-10-22 09:02:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 09:02:00,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:00,265 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:00,266 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash 961369152, now seen corresponding path program 1 times [2019-10-22 09:02:00,266 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:00,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586592244] [2019-10-22 09:02:00,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:00,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586592244] [2019-10-22 09:02:00,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:00,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:00,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61446771] [2019-10-22 09:02:00,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:00,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:00,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:00,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:00,344 INFO L87 Difference]: Start difference. First operand 235 states and 340 transitions. Second operand 5 states. [2019-10-22 09:02:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:00,478 INFO L93 Difference]: Finished difference Result 889 states and 1291 transitions. [2019-10-22 09:02:00,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:02:00,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 09:02:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:00,481 INFO L225 Difference]: With dead ends: 889 [2019-10-22 09:02:00,482 INFO L226 Difference]: Without dead ends: 661 [2019-10-22 09:02:00,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:00,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-10-22 09:02:00,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 233. [2019-10-22 09:02:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-22 09:02:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2019-10-22 09:02:00,511 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 28 [2019-10-22 09:02:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:00,511 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2019-10-22 09:02:00,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2019-10-22 09:02:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:02:00,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:00,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:00,513 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:00,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2078564813, now seen corresponding path program 1 times [2019-10-22 09:02:00,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:00,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657560149] [2019-10-22 09:02:00,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:00,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657560149] [2019-10-22 09:02:00,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:00,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:00,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678472398] [2019-10-22 09:02:00,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:00,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:00,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:00,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:00,587 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand 5 states. [2019-10-22 09:02:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:00,662 INFO L93 Difference]: Finished difference Result 639 states and 901 transitions. [2019-10-22 09:02:00,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:00,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 09:02:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:00,664 INFO L225 Difference]: With dead ends: 639 [2019-10-22 09:02:00,664 INFO L226 Difference]: Without dead ends: 413 [2019-10-22 09:02:00,665 INFO L600 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 [2019-10-22 09:02:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-22 09:02:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 257. [2019-10-22 09:02:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-10-22 09:02:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2019-10-22 09:02:00,687 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 358 transitions. Word has length 33 [2019-10-22 09:02:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:00,687 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 358 transitions. [2019-10-22 09:02:00,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 358 transitions. [2019-10-22 09:02:00,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:02:00,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:00,688 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:00,688 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:00,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:00,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1515337905, now seen corresponding path program 1 times [2019-10-22 09:02:00,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:00,689 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097424082] [2019-10-22 09:02:00,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:00,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097424082] [2019-10-22 09:02:00,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:00,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:00,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223638401] [2019-10-22 09:02:00,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:00,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:00,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:00,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:00,725 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. Second operand 4 states. [2019-10-22 09:02:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:00,781 INFO L93 Difference]: Finished difference Result 627 states and 863 transitions. [2019-10-22 09:02:00,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:00,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 09:02:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:00,784 INFO L225 Difference]: With dead ends: 627 [2019-10-22 09:02:00,784 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 09:02:00,785 INFO L600 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 [2019-10-22 09:02:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 09:02:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2019-10-22 09:02:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-10-22 09:02:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2019-10-22 09:02:00,807 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 33 [2019-10-22 09:02:00,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:00,808 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2019-10-22 09:02:00,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2019-10-22 09:02:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 09:02:00,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:00,809 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:00,810 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:00,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2102143919, now seen corresponding path program 1 times [2019-10-22 09:02:00,810 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:00,810 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619825948] [2019-10-22 09:02:00,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:00,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619825948] [2019-10-22 09:02:00,847 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:00,847 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:00,847 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885543764] [2019-10-22 09:02:00,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:00,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:00,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:00,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:00,848 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand 3 states. [2019-10-22 09:02:00,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:00,889 INFO L93 Difference]: Finished difference Result 643 states and 875 transitions. [2019-10-22 09:02:00,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:00,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 09:02:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:00,891 INFO L225 Difference]: With dead ends: 643 [2019-10-22 09:02:00,891 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 09:02:00,892 INFO L600 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 [2019-10-22 09:02:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 09:02:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-22 09:02:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-22 09:02:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 500 transitions. [2019-10-22 09:02:00,921 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 500 transitions. Word has length 33 [2019-10-22 09:02:00,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:00,921 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 500 transitions. [2019-10-22 09:02:00,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:00,922 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 500 transitions. [2019-10-22 09:02:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 09:02:00,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:00,923 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:00,923 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:00,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:00,924 INFO L82 PathProgramCache]: Analyzing trace with hash -207511791, now seen corresponding path program 1 times [2019-10-22 09:02:00,924 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:00,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637246062] [2019-10-22 09:02:00,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:00,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:01,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637246062] [2019-10-22 09:02:01,014 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:01,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:01,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811738133] [2019-10-22 09:02:01,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:01,015 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:01,015 INFO L87 Difference]: Start difference. First operand 377 states and 500 transitions. Second operand 3 states. [2019-10-22 09:02:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:01,078 INFO L93 Difference]: Finished difference Result 579 states and 775 transitions. [2019-10-22 09:02:01,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:01,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 09:02:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:01,082 INFO L225 Difference]: With dead ends: 579 [2019-10-22 09:02:01,082 INFO L226 Difference]: Without dead ends: 577 [2019-10-22 09:02:01,082 INFO L600 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 [2019-10-22 09:02:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-22 09:02:01,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 460. [2019-10-22 09:02:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-22 09:02:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 624 transitions. [2019-10-22 09:02:01,117 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 624 transitions. Word has length 34 [2019-10-22 09:02:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:01,118 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 624 transitions. [2019-10-22 09:02:01,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 624 transitions. [2019-10-22 09:02:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-22 09:02:01,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:01,119 INFO L380 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] [2019-10-22 09:02:01,120 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:01,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:01,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1115593900, now seen corresponding path program 1 times [2019-10-22 09:02:01,120 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:01,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930488246] [2019-10-22 09:02:01,121 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,121 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:01,154 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 09:02:01,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930488246] [2019-10-22 09:02:01,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:01,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:01,154 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321557086] [2019-10-22 09:02:01,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:01,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:01,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:01,155 INFO L87 Difference]: Start difference. First operand 460 states and 624 transitions. Second operand 3 states. [2019-10-22 09:02:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:01,214 INFO L93 Difference]: Finished difference Result 552 states and 745 transitions. [2019-10-22 09:02:01,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:01,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-22 09:02:01,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:01,216 INFO L225 Difference]: With dead ends: 552 [2019-10-22 09:02:01,216 INFO L226 Difference]: Without dead ends: 228 [2019-10-22 09:02:01,217 INFO L600 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 [2019-10-22 09:02:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-10-22 09:02:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-10-22 09:02:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-10-22 09:02:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 297 transitions. [2019-10-22 09:02:01,234 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 297 transitions. Word has length 54 [2019-10-22 09:02:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:01,234 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 297 transitions. [2019-10-22 09:02:01,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 297 transitions. [2019-10-22 09:02:01,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-22 09:02:01,236 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:01,236 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:01,236 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:01,236 INFO L82 PathProgramCache]: Analyzing trace with hash -540947520, now seen corresponding path program 1 times [2019-10-22 09:02:01,237 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:01,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893869798] [2019-10-22 09:02:01,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:01,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893869798] [2019-10-22 09:02:01,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104594678] [2019-10-22 09:02:01,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/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 [2019-10-22 09:02:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:01,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:02:01,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 09:02:01,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:01,512 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2019-10-22 09:02:01,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108295937] [2019-10-22 09:02:01,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:01,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:01,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:01,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:02:01,513 INFO L87 Difference]: Start difference. First operand 228 states and 297 transitions. Second operand 6 states. [2019-10-22 09:02:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:01,694 INFO L93 Difference]: Finished difference Result 720 states and 937 transitions. [2019-10-22 09:02:01,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:02:01,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2019-10-22 09:02:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:01,697 INFO L225 Difference]: With dead ends: 720 [2019-10-22 09:02:01,697 INFO L226 Difference]: Without dead ends: 499 [2019-10-22 09:02:01,698 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2019-10-22 09:02:01,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2019-10-22 09:02:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 205. [2019-10-22 09:02:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-10-22 09:02:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 260 transitions. [2019-10-22 09:02:01,722 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 260 transitions. Word has length 56 [2019-10-22 09:02:01,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:01,723 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 260 transitions. [2019-10-22 09:02:01,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 260 transitions. [2019-10-22 09:02:01,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 09:02:01,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:01,724 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2019-10-22 09:02:01,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:01,926 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:01,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2106888905, now seen corresponding path program 1 times [2019-10-22 09:02:01,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:01,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327267465] [2019-10-22 09:02:01,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:01,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:01,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327267465] [2019-10-22 09:02:01,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680835939] [2019-10-22 09:02:01,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/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 [2019-10-22 09:02:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:02,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:02,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:02,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:02,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-10-22 09:02:02,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876617977] [2019-10-22 09:02:02,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:02,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:02,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:02,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:02,128 INFO L87 Difference]: Start difference. First operand 205 states and 260 transitions. Second operand 3 states. [2019-10-22 09:02:02,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:02,181 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2019-10-22 09:02:02,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:02,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-22 09:02:02,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:02,182 INFO L225 Difference]: With dead ends: 325 [2019-10-22 09:02:02,182 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:02,183 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:02,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-10-22 09:02:02,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:02,184 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:02,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:02,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:02,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:02,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:02,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:02,882 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 98 [2019-10-22 09:02:03,066 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2019-10-22 09:02:03,258 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2019-10-22 09:02:03,364 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 109 [2019-10-22 09:02:03,579 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 20 [2019-10-22 09:02:03,888 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2019-10-22 09:02:04,130 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 22 [2019-10-22 09:02:04,459 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2019-10-22 09:02:04,784 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 30 [2019-10-22 09:02:05,169 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-10-22 09:02:05,677 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 26 [2019-10-22 09:02:06,003 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 30 [2019-10-22 09:02:06,215 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2019-10-22 09:02:06,261 INFO L439 ceAbstractionStarter]: At program point L135(lines 126 139) the Hoare annotation is: false [2019-10-22 09:02:06,262 INFO L439 ceAbstractionStarter]: At program point L135-1(lines 126 139) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse0 .cse1 .cse2)) (and .cse0 .cse3 .cse1 (= 0 ~methAndRunningLastTime~0) .cse2))) [2019-10-22 09:02:06,262 INFO L439 ceAbstractionStarter]: At program point L135-2(lines 126 139) the Hoare annotation is: false [2019-10-22 09:02:06,262 INFO L439 ceAbstractionStarter]: At program point L135-3(lines 126 139) the Hoare annotation is: false [2019-10-22 09:02:06,262 INFO L439 ceAbstractionStarter]: At program point L135-4(lines 126 139) the Hoare annotation is: false [2019-10-22 09:02:06,262 INFO L439 ceAbstractionStarter]: At program point L135-5(lines 126 139) the Hoare annotation is: false [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L532(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L532-2(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L532-3(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L532-5(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L532-6(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,262 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 278) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-8(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-9(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L439 ceAbstractionStarter]: At program point L202(lines 198 204) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L268-2(lines 268 278) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-11(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-12(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L268-4(lines 268 278) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-14(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-15(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L532-17(lines 532 536) no Hoare annotation was computed. [2019-10-22 09:02:06,263 INFO L443 ceAbstractionStarter]: For program point L434(lines 434 442) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L434-1(lines 434 442) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L434-2(lines 434 442) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L269(lines 269 275) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L269-2(lines 269 275) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L269-4(lines 269 275) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L336(lines 336 349) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L404-1(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,264 INFO L443 ceAbstractionStarter]: For program point L404-2(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,265 INFO L443 ceAbstractionStarter]: For program point L404-3(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,265 INFO L443 ceAbstractionStarter]: For program point L404-4(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,265 INFO L443 ceAbstractionStarter]: For program point L404-5(lines 404 421) no Hoare annotation was computed. [2019-10-22 09:02:06,265 INFO L439 ceAbstractionStarter]: At program point L372(lines 371 390) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse0 .cse3)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (and .cse0 .cse2 .cse3) .cse4 .cse5) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse6 (and .cse0 .cse1 .cse3)) (and .cse6 .cse7 .cse4 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse4 .cse5))))) [2019-10-22 09:02:06,265 INFO L443 ceAbstractionStarter]: For program point L372-1(lines 372 378) no Hoare annotation was computed. [2019-10-22 09:02:06,265 INFO L439 ceAbstractionStarter]: At program point L372-2(lines 371 390) the Hoare annotation is: false [2019-10-22 09:02:06,265 INFO L439 ceAbstractionStarter]: At program point L372-3(lines 371 390) the Hoare annotation is: false [2019-10-22 09:02:06,265 INFO L446 ceAbstractionStarter]: At program point L240(lines 221 243) the Hoare annotation is: true [2019-10-22 09:02:06,266 INFO L439 ceAbstractionStarter]: At program point L538(lines 523 541) the Hoare annotation is: false [2019-10-22 09:02:06,266 INFO L439 ceAbstractionStarter]: At program point L538-1(lines 523 541) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (and (= 0 |ULTIMATE.start_isHighWaterLevel_#res|) .cse0 (= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~2) .cse1 .cse2)) (and .cse0 .cse3 .cse1 (= 0 ~methAndRunningLastTime~0) .cse2))) [2019-10-22 09:02:06,266 INFO L439 ceAbstractionStarter]: At program point L538-2(lines 523 541) the Hoare annotation is: false [2019-10-22 09:02:06,266 INFO L439 ceAbstractionStarter]: At program point L538-3(lines 523 541) the Hoare annotation is: false [2019-10-22 09:02:06,266 INFO L439 ceAbstractionStarter]: At program point L538-4(lines 523 541) the Hoare annotation is: false [2019-10-22 09:02:06,267 INFO L439 ceAbstractionStarter]: At program point L538-5(lines 523 541) the Hoare annotation is: false [2019-10-22 09:02:06,267 INFO L443 ceAbstractionStarter]: For program point L307(lines 306 353) no Hoare annotation was computed. [2019-10-22 09:02:06,267 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,267 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2019-10-22 09:02:06,267 INFO L443 ceAbstractionStarter]: For program point L77(lines 77 81) no Hoare annotation was computed. [2019-10-22 09:02:06,268 INFO L439 ceAbstractionStarter]: At program point L474(lines 467 477) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|) (<= 1 |ULTIMATE.start_isMethaneAlarm_#res|) (and .cse1 .cse2)) (and .cse1 .cse0 (= 0 ~methaneLevelCritical~0) (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse2))) [2019-10-22 09:02:06,268 INFO L439 ceAbstractionStarter]: At program point L474-1(lines 467 477) the Hoare annotation is: false [2019-10-22 09:02:06,268 INFO L443 ceAbstractionStarter]: For program point L408(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,268 INFO L439 ceAbstractionStarter]: At program point L474-2(lines 467 477) the Hoare annotation is: false [2019-10-22 09:02:06,268 INFO L443 ceAbstractionStarter]: For program point L408-1(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,268 INFO L443 ceAbstractionStarter]: For program point L342(lines 342 348) no Hoare annotation was computed. [2019-10-22 09:02:06,268 INFO L443 ceAbstractionStarter]: For program point L408-2(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,268 INFO L439 ceAbstractionStarter]: At program point L342-1(lines 372 378) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse0 .cse3)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1 .cse2 .cse3) .cse4) (and .cse5 (and .cse0 .cse2 .cse3) .cse4) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse6 (and .cse0 .cse1 .cse3)) (and .cse6 .cse7 .cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse5 .cse4))))) [2019-10-22 09:02:06,268 INFO L443 ceAbstractionStarter]: For program point L408-3(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,269 INFO L443 ceAbstractionStarter]: For program point L408-4(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,269 INFO L443 ceAbstractionStarter]: For program point L408-5(lines 408 416) no Hoare annotation was computed. [2019-10-22 09:02:06,269 INFO L439 ceAbstractionStarter]: At program point L379(lines 379 385) the Hoare annotation is: (let ((.cse2 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 .cse2 .cse3)) (and .cse1 .cse2 .cse4 .cse3) (and .cse0 (and (and .cse1 .cse3) .cse5 (= 0 ~methAndRunningLastTime~0))) (and (and .cse4 .cse3) (= 0 ~systemActive~0)) (and .cse5 (and .cse1 .cse4 .cse3)))) [2019-10-22 09:02:06,269 INFO L439 ceAbstractionStarter]: At program point L379-1(lines 379 385) the Hoare annotation is: false [2019-10-22 09:02:06,269 INFO L439 ceAbstractionStarter]: At program point L379-2(lines 379 385) the Hoare annotation is: false [2019-10-22 09:02:06,269 INFO L443 ceAbstractionStarter]: For program point L546(lines 546 552) no Hoare annotation was computed. [2019-10-22 09:02:06,269 INFO L439 ceAbstractionStarter]: At program point L546-1(lines 546 552) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-10-22 09:02:06,269 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,269 INFO L439 ceAbstractionStarter]: At program point L580(lines 1 957) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 09:02:06,270 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 322) no Hoare annotation was computed. [2019-10-22 09:02:06,270 INFO L439 ceAbstractionStarter]: At program point L316-1(lines 316 322) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse4 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse6 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 (and .cse1 .cse2 (and .cse3 .cse4))) (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) .cse3 .cse0 .cse5 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse4 .cse6) (and (and .cse3 .cse7 .cse4) .cse1 .cse2 .cse6) (and (and .cse7 .cse4) .cse6 (= 0 ~systemActive~0)) (and (and .cse3 .cse5 .cse7 .cse4) .cse6))) [2019-10-22 09:02:06,270 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:06,271 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 57) no Hoare annotation was computed. [2019-10-22 09:02:06,271 INFO L443 ceAbstractionStarter]: For program point L53-3(lines 53 57) no Hoare annotation was computed. [2019-10-22 09:02:06,271 INFO L443 ceAbstractionStarter]: For program point L53-6(lines 53 57) no Hoare annotation was computed. [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L483(lines 478 486) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and (and .cse3 .cse0 .cse1 .cse2) .cse4 .cse5) (and .cse3 (<= 1 ~pumpRunning~0) .cse4 .cse5 .cse2 (= 0 ~methAndRunningLastTime~0)))) [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L483-1(lines 478 486) the Hoare annotation is: false [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L483-2(lines 478 486) the Hoare annotation is: false [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L153-2(lines 153 167) the Hoare annotation is: false [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L253(lines 248 255) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 09:02:06,271 INFO L443 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-10-22 09:02:06,271 INFO L439 ceAbstractionStarter]: At program point L354(lines 305 355) the Hoare annotation is: false [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90(lines 85 93) the Hoare annotation is: (let ((.cse1 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~methaneLevelCritical~0) (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse2) (and .cse1 (<= 1 ~methaneLevelCritical~0) (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|) (and .cse0 .cse2)))) [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90-1(lines 85 93) the Hoare annotation is: (let ((.cse6 (= 0 ~methaneLevelCritical~0)) (.cse7 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 .cse2 .cse3) .cse4) (and .cse1 .cse5 .cse6 .cse7 .cse3) (and .cse1 .cse6 .cse7 .cse2 .cse3) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse1 .cse5 .cse0 .cse4 .cse3 (= 0 ~methAndRunningLastTime~0)))) [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90-2(lines 85 93) the Hoare annotation is: false [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90-3(lines 85 93) the Hoare annotation is: false [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90-4(lines 85 93) the Hoare annotation is: false [2019-10-22 09:02:06,272 INFO L439 ceAbstractionStarter]: At program point L90-5(lines 85 93) the Hoare annotation is: false [2019-10-22 09:02:06,272 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:06,272 INFO L443 ceAbstractionStarter]: For program point L157(lines 157 161) no Hoare annotation was computed. [2019-10-22 09:02:06,272 INFO L443 ceAbstractionStarter]: For program point L157-1(lines 372 378) no Hoare annotation was computed. [2019-10-22 09:02:06,273 INFO L443 ceAbstractionStarter]: For program point L290(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,273 INFO L443 ceAbstractionStarter]: For program point L290-1(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,273 INFO L443 ceAbstractionStarter]: For program point L290-2(line 290) no Hoare annotation was computed. [2019-10-22 09:02:06,273 INFO L439 ceAbstractionStarter]: At program point L588(lines 583 591) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 09:02:06,273 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:06,273 INFO L443 ceAbstractionStarter]: For program point L326(lines 326 332) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L439 ceAbstractionStarter]: At program point L326-1(lines 326 332) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse3 .cse1)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1) .cse2 (= 0 ~systemActive~0)) (and (and .cse3 .cse4 .cse0 .cse1) .cse2) (and .cse5 (and .cse3 .cse0 .cse1) .cse2) (and .cse6 (and .cse3 .cse4 .cse1)) (and .cse6 .cse7 .cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse5 .cse2))))) [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130-1(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130-2(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130-3(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130-4(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L130-5(lines 130 136) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 69) no Hoare annotation was computed. [2019-10-22 09:02:06,274 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:02:06,275 INFO L443 ceAbstractionStarter]: For program point L264(lines 264 281) no Hoare annotation was computed. [2019-10-22 09:02:06,275 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 238) no Hoare annotation was computed. [2019-10-22 09:02:06,275 INFO L439 ceAbstractionStarter]: At program point L264-1(lines 1 957) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse4 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse6 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 (and .cse1 .cse2 (and .cse3 .cse4))) (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) .cse3 .cse0 .cse5 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse4 .cse6) (and (and .cse3 .cse7 .cse4) .cse1 .cse2 .cse6) (and (and .cse7 .cse4) .cse6 (= 0 ~systemActive~0)) (and (and .cse3 .cse5 .cse7 .cse4) .cse6))) [2019-10-22 09:02:06,275 INFO L443 ceAbstractionStarter]: For program point L264-2(lines 264 281) no Hoare annotation was computed. [2019-10-22 09:02:06,275 INFO L446 ceAbstractionStarter]: At program point L231-1(lines 231 238) the Hoare annotation is: true [2019-10-22 09:02:06,275 INFO L439 ceAbstractionStarter]: At program point L264-3(lines 1 957) the Hoare annotation is: false [2019-10-22 09:02:06,275 INFO L443 ceAbstractionStarter]: For program point L264-4(lines 264 281) no Hoare annotation was computed. [2019-10-22 09:02:06,275 INFO L439 ceAbstractionStarter]: At program point L264-5(lines 1 957) the Hoare annotation is: false [2019-10-22 09:02:06,275 INFO L443 ceAbstractionStarter]: For program point L430(lines 430 447) no Hoare annotation was computed. [2019-10-22 09:02:06,276 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 430 447) no Hoare annotation was computed. [2019-10-22 09:02:06,276 INFO L443 ceAbstractionStarter]: For program point L430-2(lines 430 447) no Hoare annotation was computed. [2019-10-22 09:02:06,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:06 BoogieIcfgContainer [2019-10-22 09:02:06,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:06,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:06,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:06,319 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:06,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:58" (3/4) ... [2019-10-22 09:02:06,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:06,340 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 09:02:06,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 09:02:06,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 09:02:06,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 09:02:06,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:02:06,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:02:06,374 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,374 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,375 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,376 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,376 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,377 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= \result) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == \result) && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,377 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) [2019-10-22 09:02:06,378 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) [2019-10-22 09:02:06,378 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && ((\result == 1 && 1 == systemActive) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) [2019-10-22 09:02:06,378 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 09:02:06,380 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && (((0 == \result && 1 == systemActive) && 0 == tmp___0) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) [2019-10-22 09:02:06,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2b4812e7-0671-4adb-9fa7-61afd7e0abd8/bin/uautomizer/witness.graphml [2019-10-22 09:02:06,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:06,442 INFO L168 Benchmark]: Toolchain (without parser) took 9182.19 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -123.5 MB). Peak memory consumption was 175.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,442 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:06,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:06,443 INFO L168 Benchmark]: Boogie Preprocessor took 79.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,443 INFO L168 Benchmark]: RCFGBuilder took 944.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,443 INFO L168 Benchmark]: TraceAbstraction took 7340.28 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -67.2 MB). Peak memory consumption was 405.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,443 INFO L168 Benchmark]: Witness Printer took 122.14 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:06,445 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 592.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 944.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7340.28 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -67.2 MB). Peak memory consumption was 405.3 MB. Max. memory is 11.5 GB. * Witness Printer took 122.14 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 290]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 290]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 290]: 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: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && ((\result == 1 && 1 == systemActive) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && (((0 == \result && 1 == systemActive) && 0 == tmp___0) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: ((((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: ((((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: (((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter) || (((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: (((((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= \result) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == \result) && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: SAFE, OverallTime: 7.2s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, HoareTripleCheckerStatistics: 1243 SDtfs, 1179 SDslu, 1793 SDs, 0 SdLazy, 230 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1377 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 154 NumberOfFragments, 939 HoareAnnotationTreeSize, 45 FomulaSimplifications, 137878 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 28678 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 542 ConstructedInterpolants, 0 QuantifiedInterpolants, 47208 SizeOfPredicates, 7 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 79/98 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...