./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:13:02,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:13:02,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:13:02,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:13:02,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:13:02,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:13:02,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:13:02,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:13:02,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:13:02,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:13:02,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:13:02,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:13:02,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:13:02,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:13:02,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:13:02,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:13:02,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:13:02,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:13:02,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:13:02,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:13:02,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:13:02,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:13:02,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:13:02,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:13:02,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:13:02,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:13:02,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:13:02,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:13:02,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:13:02,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:13:02,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:13:02,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:13:02,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:13:02,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:13:02,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:13:02,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:13:02,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:13:02,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:13:02,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:13:02,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:13:02,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:13:02,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:13:02,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:13:02,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:13:02,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:13:02,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:13:02,960 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:13:02,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:13:02,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:13:02,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:13:02,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:13:02,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:13:02,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:13:02,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:13:02,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:13:02,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:13:02,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:13:02,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:13:02,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:13:02,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:13:02,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:13:02,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:13:02,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:13:02,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:13:02,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:13:02,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:13:02,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:13:02,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:13:02,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:13:02,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:13:02,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:13:02,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb [2020-11-28 03:13:03,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:13:03,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:13:03,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:13:03,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:13:03,286 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:13:03,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/../../sv-benchmarks/c/psyco/psyco_security.c [2020-11-28 03:13:03,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/data/6be31e6a8/2a9e83771f524328aa8dc3d7745d8607/FLAGddb83f730 [2020-11-28 03:13:03,832 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:13:03,833 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/sv-benchmarks/c/psyco/psyco_security.c [2020-11-28 03:13:03,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/data/6be31e6a8/2a9e83771f524328aa8dc3d7745d8607/FLAGddb83f730 [2020-11-28 03:13:04,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/data/6be31e6a8/2a9e83771f524328aa8dc3d7745d8607 [2020-11-28 03:13:04,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:13:04,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:13:04,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:04,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:13:04,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:13:04,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dda0d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04, skipping insertion in model container [2020-11-28 03:13:04,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:13:04,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:13:04,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:04,464 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:13:04,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:04,510 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:13:04,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04 WrapperNode [2020-11-28 03:13:04,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:04,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:04,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:13:04,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:13:04,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:04,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:13:04,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:13:04,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:13:04,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... [2020-11-28 03:13:04,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:13:04,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:13:04,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:13:04,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:13:04,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:13:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:13:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:13:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:13:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:13:05,240 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:13:05,241 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 03:13:05,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:05 BoogieIcfgContainer [2020-11-28 03:13:05,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:13:05,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:13:05,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:13:05,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:13:05,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:04" (1/3) ... [2020-11-28 03:13:05,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fb4769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:05, skipping insertion in model container [2020-11-28 03:13:05,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:04" (2/3) ... [2020-11-28 03:13:05,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fb4769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:05, skipping insertion in model container [2020-11-28 03:13:05,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:05" (3/3) ... [2020-11-28 03:13:05,262 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-11-28 03:13:05,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:13:05,284 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:13:05,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:13:05,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:13:05,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:13:05,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:13:05,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:13:05,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:13:05,321 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:13:05,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:13:05,321 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:13:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-11-28 03:13:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:13:05,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:05,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:05,345 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:05,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:05,351 INFO L82 PathProgramCache]: Analyzing trace with hash 352571364, now seen corresponding path program 1 times [2020-11-28 03:13:05,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:05,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172466332] [2020-11-28 03:13:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:05,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172466332] [2020-11-28 03:13:05,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:05,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:13:05,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496371306] [2020-11-28 03:13:05,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:13:05,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:05,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:13:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:13:05,559 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2020-11-28 03:13:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:05,584 INFO L93 Difference]: Finished difference Result 155 states and 293 transitions. [2020-11-28 03:13:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:13:05,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 03:13:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:05,594 INFO L225 Difference]: With dead ends: 155 [2020-11-28 03:13:05,594 INFO L226 Difference]: Without dead ends: 74 [2020-11-28 03:13:05,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:13:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-28 03:13:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-28 03:13:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-28 03:13:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2020-11-28 03:13:05,635 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2020-11-28 03:13:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:05,635 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2020-11-28 03:13:05,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:13:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2020-11-28 03:13:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:13:05,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:05,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:05,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:13:05,637 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1422697708, now seen corresponding path program 1 times [2020-11-28 03:13:05,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:05,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781454132] [2020-11-28 03:13:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:05,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781454132] [2020-11-28 03:13:05,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:05,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:05,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149288324] [2020-11-28 03:13:05,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:05,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:05,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:05,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:05,682 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand 3 states. [2020-11-28 03:13:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:05,804 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2020-11-28 03:13:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:05,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 03:13:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:05,806 INFO L225 Difference]: With dead ends: 149 [2020-11-28 03:13:05,806 INFO L226 Difference]: Without dead ends: 77 [2020-11-28 03:13:05,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:05,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-28 03:13:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-28 03:13:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 03:13:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2020-11-28 03:13:05,830 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2020-11-28 03:13:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:05,831 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2020-11-28 03:13:05,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2020-11-28 03:13:05,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:13:05,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:05,832 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:05,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:13:05,833 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:05,834 INFO L82 PathProgramCache]: Analyzing trace with hash 658032583, now seen corresponding path program 1 times [2020-11-28 03:13:05,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:05,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414700600] [2020-11-28 03:13:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:05,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414700600] [2020-11-28 03:13:05,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:05,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:05,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565363222] [2020-11-28 03:13:05,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:05,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:05,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:05,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:05,915 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand 3 states. [2020-11-28 03:13:05,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:05,990 INFO L93 Difference]: Finished difference Result 157 states and 229 transitions. [2020-11-28 03:13:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:05,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-28 03:13:05,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:05,992 INFO L225 Difference]: With dead ends: 157 [2020-11-28 03:13:05,992 INFO L226 Difference]: Without dead ends: 83 [2020-11-28 03:13:05,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:05,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-28 03:13:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-11-28 03:13:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-28 03:13:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2020-11-28 03:13:06,002 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 15 [2020-11-28 03:13:06,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,002 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2020-11-28 03:13:06,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2020-11-28 03:13:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:13:06,003 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,009 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:13:06,010 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2066489199, now seen corresponding path program 1 times [2020-11-28 03:13:06,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446098596] [2020-11-28 03:13:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:06,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446098596] [2020-11-28 03:13:06,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:13:06,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672559554] [2020-11-28 03:13:06,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:13:06,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:13:06,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:13:06,110 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 4 states. [2020-11-28 03:13:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,332 INFO L93 Difference]: Finished difference Result 254 states and 362 transitions. [2020-11-28 03:13:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:13:06,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-28 03:13:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,335 INFO L225 Difference]: With dead ends: 254 [2020-11-28 03:13:06,335 INFO L226 Difference]: Without dead ends: 164 [2020-11-28 03:13:06,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:13:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-28 03:13:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 129. [2020-11-28 03:13:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-28 03:13:06,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 194 transitions. [2020-11-28 03:13:06,362 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 194 transitions. Word has length 18 [2020-11-28 03:13:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,362 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 194 transitions. [2020-11-28 03:13:06,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:13:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 194 transitions. [2020-11-28 03:13:06,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:13:06,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,366 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:13:06,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1261026174, now seen corresponding path program 1 times [2020-11-28 03:13:06,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214454717] [2020-11-28 03:13:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:13:06,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214454717] [2020-11-28 03:13:06,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:06,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007599183] [2020-11-28 03:13:06,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:06,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:06,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,427 INFO L87 Difference]: Start difference. First operand 129 states and 194 transitions. Second operand 3 states. [2020-11-28 03:13:06,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,475 INFO L93 Difference]: Finished difference Result 219 states and 335 transitions. [2020-11-28 03:13:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:06,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:13:06,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,477 INFO L225 Difference]: With dead ends: 219 [2020-11-28 03:13:06,477 INFO L226 Difference]: Without dead ends: 93 [2020-11-28 03:13:06,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-28 03:13:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-11-28 03:13:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-28 03:13:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 138 transitions. [2020-11-28 03:13:06,486 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 138 transitions. Word has length 22 [2020-11-28 03:13:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,486 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 138 transitions. [2020-11-28 03:13:06,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 138 transitions. [2020-11-28 03:13:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:13:06,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,488 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:13:06,488 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1712893632, now seen corresponding path program 1 times [2020-11-28 03:13:06,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457689105] [2020-11-28 03:13:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:13:06,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457689105] [2020-11-28 03:13:06,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:06,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052569663] [2020-11-28 03:13:06,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:06,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:06,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,546 INFO L87 Difference]: Start difference. First operand 93 states and 138 transitions. Second operand 3 states. [2020-11-28 03:13:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,628 INFO L93 Difference]: Finished difference Result 179 states and 266 transitions. [2020-11-28 03:13:06,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:06,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 03:13:06,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,630 INFO L225 Difference]: With dead ends: 179 [2020-11-28 03:13:06,630 INFO L226 Difference]: Without dead ends: 105 [2020-11-28 03:13:06,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-28 03:13:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 95. [2020-11-28 03:13:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-28 03:13:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2020-11-28 03:13:06,640 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 26 [2020-11-28 03:13:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,640 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2020-11-28 03:13:06,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2020-11-28 03:13:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:13:06,642 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,642 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:13:06,642 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1584038971, now seen corresponding path program 1 times [2020-11-28 03:13:06,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217967798] [2020-11-28 03:13:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:13:06,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217967798] [2020-11-28 03:13:06,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:06,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651352026] [2020-11-28 03:13:06,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:06,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:06,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,681 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand 3 states. [2020-11-28 03:13:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,746 INFO L93 Difference]: Finished difference Result 162 states and 225 transitions. [2020-11-28 03:13:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:06,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-28 03:13:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,748 INFO L225 Difference]: With dead ends: 162 [2020-11-28 03:13:06,748 INFO L226 Difference]: Without dead ends: 88 [2020-11-28 03:13:06,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-28 03:13:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-11-28 03:13:06,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 03:13:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2020-11-28 03:13:06,765 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 27 [2020-11-28 03:13:06,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,766 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2020-11-28 03:13:06,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2020-11-28 03:13:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:13:06,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,772 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:13:06,773 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1447684816, now seen corresponding path program 1 times [2020-11-28 03:13:06,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907145326] [2020-11-28 03:13:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:13:06,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907145326] [2020-11-28 03:13:06,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:06,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193912978] [2020-11-28 03:13:06,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:06,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:06,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,807 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand 3 states. [2020-11-28 03:13:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,851 INFO L93 Difference]: Finished difference Result 133 states and 176 transitions. [2020-11-28 03:13:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:06,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-28 03:13:06,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,852 INFO L225 Difference]: With dead ends: 133 [2020-11-28 03:13:06,852 INFO L226 Difference]: Without dead ends: 66 [2020-11-28 03:13:06,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-28 03:13:06,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-28 03:13:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-28 03:13:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2020-11-28 03:13:06,857 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 27 [2020-11-28 03:13:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,858 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2020-11-28 03:13:06,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2020-11-28 03:13:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:13:06,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:06,859 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:13:06,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,860 INFO L82 PathProgramCache]: Analyzing trace with hash -583473182, now seen corresponding path program 1 times [2020-11-28 03:13:06,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568187256] [2020-11-28 03:13:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:13:06,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568187256] [2020-11-28 03:13:06,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:06,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:13:06,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318542976] [2020-11-28 03:13:06,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:13:06,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:06,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:13:06,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,931 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand 3 states. [2020-11-28 03:13:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:06,964 INFO L93 Difference]: Finished difference Result 107 states and 139 transitions. [2020-11-28 03:13:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:13:06,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-11-28 03:13:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:06,965 INFO L225 Difference]: With dead ends: 107 [2020-11-28 03:13:06,965 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:13:06,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:13:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:13:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:13:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:13:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:13:06,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-11-28 03:13:06,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:06,967 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:06,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:13:06,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:13:06,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:13:06,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:13:06,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:13:07,077 INFO L274 CegarLoopResult]: For program point L250(lines 250 265) no Hoare annotation was computed. [2020-11-28 03:13:07,077 INFO L274 CegarLoopResult]: For program point L118(lines 118 133) no Hoare annotation was computed. [2020-11-28 03:13:07,077 INFO L274 CegarLoopResult]: For program point L52(lines 52 63) no Hoare annotation was computed. [2020-11-28 03:13:07,077 INFO L274 CegarLoopResult]: For program point L366(lines 366 381) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point L234(lines 234 249) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point L168(lines 168 179) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point L102(lines 102 117) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L270 CegarLoopResult]: At program point L383(lines 24 387) the Hoare annotation is: (or (and (<= 4 ULTIMATE.start_main_~q~0) (= 3 ULTIMATE.start_main_~this_state~0)) (= ULTIMATE.start_main_~q~0 0) (and (= ULTIMATE.start_main_~q~0 3) (= 2 ULTIMATE.start_main_~this_state~0)) (and (= ULTIMATE.start_main_~this_state~0 0) (= ULTIMATE.start_main_~q~0 2))) [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-11-28 03:13:07,078 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L218(lines 218 233) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L185(lines 185 284) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L152(lines 152 163) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L334(lines 334 349) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L268(lines 268 279) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L202(lines 202 217) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L136(lines 136 147) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L318(lines 318 333) no Hoare annotation was computed. [2020-11-28 03:13:07,079 INFO L274 CegarLoopResult]: For program point L285(lines 285 384) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L252(lines 252 263) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L186(lines 186 201) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L120(lines 120 131) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L368(lines 368 379) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L302(lines 302 317) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L236(lines 236 247) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L104(lines 104 115) no Hoare annotation was computed. [2020-11-28 03:13:07,080 INFO L274 CegarLoopResult]: For program point L352(lines 352 363) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L286(lines 286 301) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L220(lines 220 231) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L88(lines 88 90) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L336(lines 336 347) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L72(lines 72 74) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-11-28 03:13:07,081 INFO L274 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L156(lines 156 158) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (not (= 2 ULTIMATE.start_main_~this_state~0)) (= ULTIMATE.start_main_~q~0 0)) (and (<= 4 ULTIMATE.start_main_~q~0) (= 3 ULTIMATE.start_main_~this_state~0))) [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L272(lines 272 274) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point L140(lines 140 142) no Hoare annotation was computed. [2020-11-28 03:13:07,082 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L256(lines 256 258) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L124(lines 124 126) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L240(lines 240 242) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L108(lines 108 110) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L356(lines 356 358) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L224(lines 224 226) no Hoare annotation was computed. [2020-11-28 03:13:07,083 INFO L270 CegarLoopResult]: At program point L373(lines 15 392) the Hoare annotation is: false [2020-11-28 03:13:07,083 INFO L274 CegarLoopResult]: For program point L340(lines 340 342) no Hoare annotation was computed. [2020-11-28 03:13:07,084 INFO L274 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-11-28 03:13:07,084 INFO L274 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-11-28 03:13:07,092 INFO L274 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-11-28 03:13:07,092 INFO L274 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-11-28 03:13:07,093 INFO L274 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point L30(lines 30 45) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L277 CegarLoopResult]: At program point L15(lines 15 392) the Hoare annotation is: true [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point L32(lines 32 43) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:13:07,094 INFO L274 CegarLoopResult]: For program point L82(lines 82 97) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L49(lines 49 100) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L66(lines 66 81) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L50(lines 50 65) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L166(lines 166 181) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L150(lines 150 165) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L84(lines 84 95) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L266(lines 266 281) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L134(lines 134 149) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L101(lines 101 184) no Hoare annotation was computed. [2020-11-28 03:13:07,095 INFO L274 CegarLoopResult]: For program point L68(lines 68 79) no Hoare annotation was computed. [2020-11-28 03:13:07,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:13:07 BoogieIcfgContainer [2020-11-28 03:13:07,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:13:07,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:13:07,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:13:07,119 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:13:07,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:05" (3/4) ... [2020-11-28 03:13:07,122 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:13:07,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:13:07,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:13:07,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:13:07,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:13:07,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_45e27231-dcfc-41e8-bc91-ec23748fdb90/bin/uautomizer/witness.graphml [2020-11-28 03:13:07,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:13:07,186 INFO L168 Benchmark]: Toolchain (without parser) took 2972.01 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.3 MB in the beginning and 57.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,189 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:07,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.26 ms. Allocated memory is still 83.9 MB. Free memory was 52.2 MB in the beginning and 59.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 83.9 MB. Free memory was 59.7 MB in the beginning and 57.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,190 INFO L168 Benchmark]: Boogie Preprocessor took 40.40 ms. Allocated memory is still 83.9 MB. Free memory was 57.7 MB in the beginning and 56.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:07,191 INFO L168 Benchmark]: RCFGBuilder took 649.75 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.0 MB in the beginning and 76.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,191 INFO L168 Benchmark]: TraceAbstraction took 1865.68 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 59.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,192 INFO L168 Benchmark]: Witness Printer took 63.39 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 57.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:07,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.26 ms. Allocated memory is still 83.9 MB. Free memory was 52.2 MB in the beginning and 59.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 83.9 MB. Free memory was 59.7 MB in the beginning and 57.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.40 ms. Allocated memory is still 83.9 MB. Free memory was 57.7 MB in the beginning and 56.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 649.75 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 56.0 MB in the beginning and 76.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1865.68 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 59.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * Witness Printer took 63.39 ms. Allocated memory is still 100.7 MB. Free memory was 59.4 MB in the beginning and 57.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (!(2 == this_state) && q == 0) || (4 <= q && 3 == this_state) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((4 <= q && 3 == this_state) || q == 0) || (q == 3 && 2 == this_state)) || (this_state == 0 && q == 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 880 SDtfs, 271 SDslu, 515 SDs, 0 SdLazy, 271 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 47 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 43 HoareAnnotationTreeSize, 4 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 6349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...