./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.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_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/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 253410f53553d69ef02e4dba1b07bb26de7bec75 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:54:22,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:22,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:22,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:22,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:22,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:22,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:22,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:22,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:22,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:22,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:22,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:22,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:22,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:22,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:22,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:22,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:22,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:22,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:22,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:22,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:22,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:22,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:22,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:22,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:22,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:22,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:22,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:22,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:22,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:22,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:22,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:22,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:22,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:22,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:22,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:22,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:22,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:22,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:22,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:22,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:22,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:22,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:22,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:22,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:22,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:22,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:22,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:22,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:22,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:22,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:22,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:22,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:22,932 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_f1de90cd-ab4c-43a7-a504-70b8e7163f22/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 -> 253410f53553d69ef02e4dba1b07bb26de7bec75 [2019-10-22 08:54:22,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:22,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:22,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:22,969 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:22,969 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:22,970 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c [2019-10-22 08:54:23,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/data/8873b9464/af78117010b74be9b0618bc788af476a/FLAGd2e08d58f [2019-10-22 08:54:23,374 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:23,379 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/sv-benchmarks/c/ssh-simplified/s3_srvr_1a.cil.c [2019-10-22 08:54:23,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/data/8873b9464/af78117010b74be9b0618bc788af476a/FLAGd2e08d58f [2019-10-22 08:54:23,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/data/8873b9464/af78117010b74be9b0618bc788af476a [2019-10-22 08:54:23,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:23,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:23,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:23,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:23,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:23,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:23" (1/1) ... [2019-10-22 08:54:23,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7dcf75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:23, skipping insertion in model container [2019-10-22 08:54:23,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:23" (1/1) ... [2019-10-22 08:54:23,793 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:23,815 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:24,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:24,062 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:24,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:24,099 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:24,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24 WrapperNode [2019-10-22 08:54:24,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:24,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:24,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:24,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:24,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:24,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:24,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:24,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:24,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... [2019-10-22 08:54:24,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:24,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:24,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:24,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:24,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/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 08:54:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:24,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:24,516 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:54:24,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:24 BoogieIcfgContainer [2019-10-22 08:54:24,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:24,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:24,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:24,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:24,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:23" (1/3) ... [2019-10-22 08:54:24,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5442f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:24, skipping insertion in model container [2019-10-22 08:54:24,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:24" (2/3) ... [2019-10-22 08:54:24,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5442f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:24, skipping insertion in model container [2019-10-22 08:54:24,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:24" (3/3) ... [2019-10-22 08:54:24,528 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2019-10-22 08:54:24,537 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:24,548 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:24,558 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:24,586 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:24,586 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:24,586 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:24,586 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:24,586 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:24,587 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:24,587 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:24,587 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-22 08:54:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:54:24,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:24,606 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:54:24,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:24,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:24,613 INFO L82 PathProgramCache]: Analyzing trace with hash 963516, now seen corresponding path program 1 times [2019-10-22 08:54:24,627 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:24,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687789719] [2019-10-22 08:54:24,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:24,728 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 08:54:24,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687789719] [2019-10-22 08:54:24,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:24,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:24,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056057719] [2019-10-22 08:54:24,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:24,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:24,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:24,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:24,742 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2019-10-22 08:54:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:24,818 INFO L93 Difference]: Finished difference Result 131 states and 218 transitions. [2019-10-22 08:54:24,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:24,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 08:54:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:24,831 INFO L225 Difference]: With dead ends: 131 [2019-10-22 08:54:24,831 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 08:54:24,834 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 08:54:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 08:54:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-10-22 08:54:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 08:54:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 122 transitions. [2019-10-22 08:54:24,868 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 122 transitions. Word has length 4 [2019-10-22 08:54:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:24,868 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 122 transitions. [2019-10-22 08:54:24,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2019-10-22 08:54:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:54:24,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:24,869 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:24,869 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash -737314741, now seen corresponding path program 1 times [2019-10-22 08:54:24,870 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:24,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358449495] [2019-10-22 08:54:24,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:24,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358449495] [2019-10-22 08:54:24,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:24,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:24,891 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148043962] [2019-10-22 08:54:24,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:24,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:24,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:24,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:24,893 INFO L87 Difference]: Start difference. First operand 79 states and 122 transitions. Second operand 3 states. [2019-10-22 08:54:24,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:24,954 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2019-10-22 08:54:24,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:24,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 08:54:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:24,956 INFO L225 Difference]: With dead ends: 157 [2019-10-22 08:54:24,956 INFO L226 Difference]: Without dead ends: 117 [2019-10-22 08:54:24,957 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 08:54:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-22 08:54:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-10-22 08:54:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-10-22 08:54:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 180 transitions. [2019-10-22 08:54:24,971 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 180 transitions. Word has length 9 [2019-10-22 08:54:24,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:24,971 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 180 transitions. [2019-10-22 08:54:24,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 180 transitions. [2019-10-22 08:54:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:54:24,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:24,972 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:24,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:24,973 INFO L82 PathProgramCache]: Analyzing trace with hash -407668003, now seen corresponding path program 1 times [2019-10-22 08:54:24,973 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:24,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231911726] [2019-10-22 08:54:24,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 08:54:24,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231911726] [2019-10-22 08:54:24,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:24,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:24,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810535918] [2019-10-22 08:54:24,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:24,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:24,998 INFO L87 Difference]: Start difference. First operand 117 states and 180 transitions. Second operand 3 states. [2019-10-22 08:54:25,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:25,098 INFO L93 Difference]: Finished difference Result 233 states and 365 transitions. [2019-10-22 08:54:25,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:25,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-22 08:54:25,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:25,102 INFO L225 Difference]: With dead ends: 233 [2019-10-22 08:54:25,102 INFO L226 Difference]: Without dead ends: 155 [2019-10-22 08:54:25,103 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 08:54:25,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-22 08:54:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-10-22 08:54:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 08:54:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 239 transitions. [2019-10-22 08:54:25,129 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 239 transitions. Word has length 15 [2019-10-22 08:54:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:25,130 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 239 transitions. [2019-10-22 08:54:25,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 239 transitions. [2019-10-22 08:54:25,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:54:25,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:25,131 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:25,131 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:25,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1622407343, now seen corresponding path program 1 times [2019-10-22 08:54:25,136 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:25,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061161508] [2019-10-22 08:54:25,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 08:54:25,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061161508] [2019-10-22 08:54:25,183 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:25,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:25,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277969913] [2019-10-22 08:54:25,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:25,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:25,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:25,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:25,185 INFO L87 Difference]: Start difference. First operand 155 states and 239 transitions. Second operand 3 states. [2019-10-22 08:54:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:25,294 INFO L93 Difference]: Finished difference Result 367 states and 579 transitions. [2019-10-22 08:54:25,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:25,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-22 08:54:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:25,296 INFO L225 Difference]: With dead ends: 367 [2019-10-22 08:54:25,296 INFO L226 Difference]: Without dead ends: 213 [2019-10-22 08:54:25,297 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 08:54:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-22 08:54:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2019-10-22 08:54:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-10-22 08:54:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 291 transitions. [2019-10-22 08:54:25,313 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 291 transitions. Word has length 30 [2019-10-22 08:54:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:25,314 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 291 transitions. [2019-10-22 08:54:25,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 291 transitions. [2019-10-22 08:54:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 08:54:25,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:25,315 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:25,316 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:25,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:25,316 INFO L82 PathProgramCache]: Analyzing trace with hash 2042852816, now seen corresponding path program 1 times [2019-10-22 08:54:25,316 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:25,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597531086] [2019-10-22 08:54:25,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 08:54:25,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597531086] [2019-10-22 08:54:25,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:25,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:25,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563716686] [2019-10-22 08:54:25,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:25,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:25,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:25,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:25,365 INFO L87 Difference]: Start difference. First operand 207 states and 291 transitions. Second operand 3 states. [2019-10-22 08:54:25,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:25,407 INFO L93 Difference]: Finished difference Result 415 states and 588 transitions. [2019-10-22 08:54:25,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:25,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-10-22 08:54:25,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:25,409 INFO L225 Difference]: With dead ends: 415 [2019-10-22 08:54:25,409 INFO L226 Difference]: Without dead ends: 260 [2019-10-22 08:54:25,410 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 08:54:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-10-22 08:54:25,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2019-10-22 08:54:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-22 08:54:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2019-10-22 08:54:25,427 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 44 [2019-10-22 08:54:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:25,427 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2019-10-22 08:54:25,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2019-10-22 08:54:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 08:54:25,429 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:25,429 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 3, 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] [2019-10-22 08:54:25,430 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:25,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1056783528, now seen corresponding path program 1 times [2019-10-22 08:54:25,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:25,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538990975] [2019-10-22 08:54:25,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-22 08:54:25,462 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538990975] [2019-10-22 08:54:25,462 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:25,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:25,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116533141] [2019-10-22 08:54:25,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:25,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:25,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:25,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:25,463 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand 3 states. [2019-10-22 08:54:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:25,542 INFO L93 Difference]: Finished difference Result 523 states and 752 transitions. [2019-10-22 08:54:25,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:25,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-22 08:54:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:25,544 INFO L225 Difference]: With dead ends: 523 [2019-10-22 08:54:25,544 INFO L226 Difference]: Without dead ends: 188 [2019-10-22 08:54:25,545 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 08:54:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-22 08:54:25,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 185. [2019-10-22 08:54:25,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-10-22 08:54:25,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 244 transitions. [2019-10-22 08:54:25,555 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 244 transitions. Word has length 47 [2019-10-22 08:54:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:25,555 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 244 transitions. [2019-10-22 08:54:25,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 244 transitions. [2019-10-22 08:54:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-22 08:54:25,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:25,557 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:25,558 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:25,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:25,558 INFO L82 PathProgramCache]: Analyzing trace with hash -439474765, now seen corresponding path program 1 times [2019-10-22 08:54:25,558 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:25,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178521929] [2019-10-22 08:54:25,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:25,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-22 08:54:25,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178521929] [2019-10-22 08:54:25,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:25,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:25,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113518382] [2019-10-22 08:54:25,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:25,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:25,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:25,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:25,607 INFO L87 Difference]: Start difference. First operand 185 states and 244 transitions. Second operand 3 states. [2019-10-22 08:54:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:25,619 INFO L93 Difference]: Finished difference Result 306 states and 375 transitions. [2019-10-22 08:54:25,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:25,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-10-22 08:54:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:25,620 INFO L225 Difference]: With dead ends: 306 [2019-10-22 08:54:25,620 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:25,621 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 08:54:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:25,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2019-10-22 08:54:25,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:25,622 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:25,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:25,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:25,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:54:25,853 INFO L446 ceAbstractionStarter]: At program point L217(lines 9 218) the Hoare annotation is: true [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 186) no Hoare annotation was computed. [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 190) no Hoare annotation was computed. [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 75 184) no Hoare annotation was computed. [2019-10-22 08:54:25,853 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 194) no Hoare annotation was computed. [2019-10-22 08:54:25,854 INFO L443 ceAbstractionStarter]: For program point L86-1(lines 75 184) no Hoare annotation was computed. [2019-10-22 08:54:25,854 INFO L439 ceAbstractionStarter]: At program point L177(lines 23 212) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and (<= 8672 ULTIMATE.start_main_~s__state~0) .cse0) (<= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-10-22 08:54:25,854 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 198) no Hoare annotation was computed. [2019-10-22 08:54:25,854 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 140) no Hoare annotation was computed. [2019-10-22 08:54:25,854 INFO L439 ceAbstractionStarter]: At program point L70(lines 69 186) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and (<= ULTIMATE.start_main_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-10-22 08:54:25,854 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 202) no Hoare annotation was computed. [2019-10-22 08:54:25,855 INFO L439 ceAbstractionStarter]: At program point L62(lines 61 190) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,855 INFO L439 ceAbstractionStarter]: At program point L54(lines 53 194) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,855 INFO L439 ceAbstractionStarter]: At program point L46(lines 45 198) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,855 INFO L443 ceAbstractionStarter]: For program point L79-1(lines 79 81) no Hoare annotation was computed. [2019-10-22 08:54:25,855 INFO L443 ceAbstractionStarter]: For program point L170-1(lines 75 184) no Hoare annotation was computed. [2019-10-22 08:54:25,855 INFO L439 ceAbstractionStarter]: At program point L38(lines 37 202) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,855 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 205) no Hoare annotation was computed. [2019-10-22 08:54:25,855 INFO L439 ceAbstractionStarter]: At program point L121(lines 114 123) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,857 INFO L439 ceAbstractionStarter]: At program point L113(lines 106 124) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,857 INFO L443 ceAbstractionStarter]: For program point L163-1(lines 163 165) no Hoare annotation was computed. [2019-10-22 08:54:25,857 INFO L439 ceAbstractionStarter]: At program point L31(lines 30 205) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 124) no Hoare annotation was computed. [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L73(lines 73 184) no Hoare annotation was computed. [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 188) no Hoare annotation was computed. [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 192) no Hoare annotation was computed. [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-10-22 08:54:25,858 INFO L446 ceAbstractionStarter]: At program point L214(lines 9 218) the Hoare annotation is: true [2019-10-22 08:54:25,858 INFO L443 ceAbstractionStarter]: For program point L115(lines 115 119) no Hoare annotation was computed. [2019-10-22 08:54:25,859 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 196) no Hoare annotation was computed. [2019-10-22 08:54:25,859 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 175) no Hoare annotation was computed. [2019-10-22 08:54:25,859 INFO L443 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2019-10-22 08:54:25,859 INFO L439 ceAbstractionStarter]: At program point L74(lines 73 184) the Hoare annotation is: (and (<= 8672 ULTIMATE.start_main_~s__state~0) (<= ULTIMATE.start_main_~blastFlag~0 3)) [2019-10-22 08:54:25,859 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 200) no Hoare annotation was computed. [2019-10-22 08:54:25,859 INFO L439 ceAbstractionStarter]: At program point L66(lines 65 188) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and (<= ULTIMATE.start_main_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-10-22 08:54:25,859 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 204) no Hoare annotation was computed. [2019-10-22 08:54:25,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:54:25,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 216) no Hoare annotation was computed. [2019-10-22 08:54:25,860 INFO L439 ceAbstractionStarter]: At program point L58(lines 57 192) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,860 INFO L439 ceAbstractionStarter]: At program point L50(lines 49 196) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,860 INFO L439 ceAbstractionStarter]: At program point L174(lines 9 218) the Hoare annotation is: false [2019-10-22 08:54:25,861 INFO L439 ceAbstractionStarter]: At program point L42(lines 41 200) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,861 INFO L439 ceAbstractionStarter]: At program point L34(lines 33 204) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 08:54:25,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:25 BoogieIcfgContainer [2019-10-22 08:54:25,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:25,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:25,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:25,886 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:25,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:24" (3/4) ... [2019-10-22 08:54:25,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:25,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:54:25,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:54:25,971 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f1de90cd-ab4c-43a7-a504-70b8e7163f22/bin/uautomizer/witness.graphml [2019-10-22 08:54:25,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:25,976 INFO L168 Benchmark]: Toolchain (without parser) took 2198.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.2 MB in the beginning and 942.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 145.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:25,977 INFO L168 Benchmark]: CDTParser took 0.14 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 08:54:25,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:25,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:25,978 INFO L168 Benchmark]: Boogie Preprocessor took 29.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:25,978 INFO L168 Benchmark]: RCFGBuilder took 346.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:25,978 INFO L168 Benchmark]: TraceAbstraction took 1367.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.8 MB in the end (delta: 156.8 MB). Peak memory consumption was 156.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:25,978 INFO L168 Benchmark]: Witness Printer took 89.17 ms. Allocated memory is still 1.2 GB. Free memory was 948.8 MB in the beginning and 942.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:25,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 320.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 346.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1367.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.8 MB in the end (delta: 156.8 MB). Peak memory consumption was 156.8 MB. Max. memory is 11.5 GB. * Witness Printer took 89.17 ms. Allocated memory is still 1.2 GB. Free memory was 948.8 MB in the beginning and 942.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 216]: 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: 57]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((8672 <= s__state && blastFlag <= 3) || blastFlag <= 2) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 8672 <= s__state && blastFlag <= 3 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 427 SDtfs, 251 SDslu, 292 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=5, 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 103 HoareAnnotationTreeSize, 18 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 22669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 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...