./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI --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 Taipan --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 0.2.0-7b2dab5 [2021-10-11 02:26:05,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:05,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:05,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:05,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:05,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:05,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:05,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:05,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:05,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:05,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:05,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:05,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:05,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:05,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:05,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:05,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:05,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:05,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:05,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:05,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:05,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:05,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:05,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:05,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:05,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:05,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:05,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:05,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:05,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:05,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:05,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:05,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:05,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:05,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:05,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:05,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:05,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:05,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:05,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:05,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:05,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:05,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:05,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:05,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:05,200 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:05,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:05,200 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:05,200 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:05,201 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:05,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:05,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:05,202 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:05,202 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:05,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:05,203 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:05,203 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:05,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:05,204 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:05,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:05,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:05,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:05,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:05,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:05,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:05,206 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:05,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:05,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:05,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:05,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:05,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:05,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:05,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:05,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:05,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:05,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:05,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:05,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:05,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:05,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:05,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:05,211 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb [2021-10-11 02:26:05,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:05,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:05,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:05,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:05,580 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:05,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/psyco/psyco_security.c [2021-10-11 02:26:05,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/data/e6095d3fe/ea7eb587e0fe43a0b086eea0e110e923/FLAG93f39d90b [2021-10-11 02:26:06,256 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:06,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/sv-benchmarks/c/psyco/psyco_security.c [2021-10-11 02:26:06,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/data/e6095d3fe/ea7eb587e0fe43a0b086eea0e110e923/FLAG93f39d90b [2021-10-11 02:26:06,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/data/e6095d3fe/ea7eb587e0fe43a0b086eea0e110e923 [2021-10-11 02:26:06,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:06,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:06,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:06,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:06,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:06,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3669668d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06, skipping insertion in model container [2021-10-11 02:26:06,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:06,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:06,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-10-11 02:26:06,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:06,874 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:06,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-10-11 02:26:06,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:06,919 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:06,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06 WrapperNode [2021-10-11 02:26:06,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:06,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:06,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:06,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:06,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:06,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:06,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:06,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:06,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:07,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:07,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:07,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:07,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:07,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:07,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:07,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:07,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:07,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:07,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:07,810 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-11 02:26:07,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:07 BoogieIcfgContainer [2021-10-11 02:26:07,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:07,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:07,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:07,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:07,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:06" (1/3) ... [2021-10-11 02:26:07,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ffc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:07, skipping insertion in model container [2021-10-11 02:26:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06" (2/3) ... [2021-10-11 02:26:07,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ffc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:07, skipping insertion in model container [2021-10-11 02:26:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:07" (3/3) ... [2021-10-11 02:26:07,830 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2021-10-11 02:26:07,845 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:07,849 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:07,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:07,904 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:07,904 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:07,905 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:07,905 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:07,905 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:07,905 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:07,905 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:07,905 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2021-10-11 02:26:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:26:07,938 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:07,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:07,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:07,952 INFO L82 PathProgramCache]: Analyzing trace with hash 269823665, now seen corresponding path program 1 times [2021-10-11 02:26:07,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:07,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537171970] [2021-10-11 02:26:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:08,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537171970] [2021-10-11 02:26:08,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:08,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:08,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581315757] [2021-10-11 02:26:08,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:08,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:08,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:08,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:08,189 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2021-10-11 02:26:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:08,235 INFO L93 Difference]: Finished difference Result 151 states and 289 transitions. [2021-10-11 02:26:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:08,236 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:26:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:08,255 INFO L225 Difference]: With dead ends: 151 [2021-10-11 02:26:08,256 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 02:26:08,259 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 [2021-10-11 02:26:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 02:26:08,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 02:26:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 02:26:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-10-11 02:26:08,302 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 8 [2021-10-11 02:26:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:08,303 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-10-11 02:26:08,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:08,303 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-10-11 02:26:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:26:08,304 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:08,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:08,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:08,305 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:08,306 INFO L82 PathProgramCache]: Analyzing trace with hash 307090919, now seen corresponding path program 1 times [2021-10-11 02:26:08,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:08,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384270888] [2021-10-11 02:26:08,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:08,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384270888] [2021-10-11 02:26:08,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:08,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:08,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492232274] [2021-10-11 02:26:08,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:08,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:08,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:08,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:08,353 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 3 states. [2021-10-11 02:26:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:08,496 INFO L93 Difference]: Finished difference Result 148 states and 219 transitions. [2021-10-11 02:26:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:08,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 02:26:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:08,513 INFO L225 Difference]: With dead ends: 148 [2021-10-11 02:26:08,513 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 02:26:08,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 02:26:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-10-11 02:26:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 02:26:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2021-10-11 02:26:08,537 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 9 [2021-10-11 02:26:08,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:08,537 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2021-10-11 02:26:08,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2021-10-11 02:26:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:26:08,539 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:08,539 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:08,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:26:08,540 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:08,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:08,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1213654828, now seen corresponding path program 1 times [2021-10-11 02:26:08,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:08,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237981561] [2021-10-11 02:26:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:08,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237981561] [2021-10-11 02:26:08,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:08,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:08,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134528668] [2021-10-11 02:26:08,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:08,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:08,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:08,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:08,628 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2021-10-11 02:26:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:08,713 INFO L93 Difference]: Finished difference Result 156 states and 228 transitions. [2021-10-11 02:26:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:08,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-10-11 02:26:08,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:08,717 INFO L225 Difference]: With dead ends: 156 [2021-10-11 02:26:08,717 INFO L226 Difference]: Without dead ends: 82 [2021-10-11 02:26:08,718 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 [2021-10-11 02:26:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-11 02:26:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-10-11 02:26:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-10-11 02:26:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2021-10-11 02:26:08,738 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 14 [2021-10-11 02:26:08,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:08,738 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2021-10-11 02:26:08,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:08,739 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2021-10-11 02:26:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:08,740 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:08,740 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:08,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:26:08,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:08,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:08,741 INFO L82 PathProgramCache]: Analyzing trace with hash -107735230, now seen corresponding path program 1 times [2021-10-11 02:26:08,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:08,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853689986] [2021-10-11 02:26:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:08,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853689986] [2021-10-11 02:26:08,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:08,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:08,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940242529] [2021-10-11 02:26:08,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:08,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:08,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:08,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:08,833 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 4 states. [2021-10-11 02:26:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,014 INFO L93 Difference]: Finished difference Result 253 states and 361 transitions. [2021-10-11 02:26:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:09,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2021-10-11 02:26:09,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,016 INFO L225 Difference]: With dead ends: 253 [2021-10-11 02:26:09,016 INFO L226 Difference]: Without dead ends: 163 [2021-10-11 02:26:09,019 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 [2021-10-11 02:26:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-11 02:26:09,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 128. [2021-10-11 02:26:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2021-10-11 02:26:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 193 transitions. [2021-10-11 02:26:09,039 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 193 transitions. Word has length 17 [2021-10-11 02:26:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,040 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 193 transitions. [2021-10-11 02:26:09,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 193 transitions. [2021-10-11 02:26:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:26:09,042 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:09,042 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:09,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:26:09,044 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:09,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1275599573, now seen corresponding path program 1 times [2021-10-11 02:26:09,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:09,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765671835] [2021-10-11 02:26:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:26:09,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765671835] [2021-10-11 02:26:09,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:09,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:09,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229671731] [2021-10-11 02:26:09,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:09,106 INFO L87 Difference]: Start difference. First operand 128 states and 193 transitions. Second operand 3 states. [2021-10-11 02:26:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,156 INFO L93 Difference]: Finished difference Result 218 states and 334 transitions. [2021-10-11 02:26:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:09,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-10-11 02:26:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,158 INFO L225 Difference]: With dead ends: 218 [2021-10-11 02:26:09,158 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 02:26:09,161 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 [2021-10-11 02:26:09,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 02:26:09,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-11 02:26:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 02:26:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2021-10-11 02:26:09,178 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 21 [2021-10-11 02:26:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,178 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2021-10-11 02:26:09,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2021-10-11 02:26:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:09,179 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:09,180 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] [2021-10-11 02:26:09,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:26:09,180 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:09,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:09,180 INFO L82 PathProgramCache]: Analyzing trace with hash -922672237, now seen corresponding path program 1 times [2021-10-11 02:26:09,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:09,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314079406] [2021-10-11 02:26:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:26:09,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314079406] [2021-10-11 02:26:09,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:09,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781104776] [2021-10-11 02:26:09,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:09,257 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2021-10-11 02:26:09,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,329 INFO L93 Difference]: Finished difference Result 178 states and 265 transitions. [2021-10-11 02:26:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:09,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:26:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,334 INFO L225 Difference]: With dead ends: 178 [2021-10-11 02:26:09,335 INFO L226 Difference]: Without dead ends: 104 [2021-10-11 02:26:09,336 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 [2021-10-11 02:26:09,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-11 02:26:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2021-10-11 02:26:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-10-11 02:26:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2021-10-11 02:26:09,346 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 25 [2021-10-11 02:26:09,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,352 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2021-10-11 02:26:09,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:09,352 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2021-10-11 02:26:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:26:09,354 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:09,354 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] [2021-10-11 02:26:09,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:26:09,355 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1682202286, now seen corresponding path program 1 times [2021-10-11 02:26:09,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:09,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621466120] [2021-10-11 02:26:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:26:09,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621466120] [2021-10-11 02:26:09,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:09,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:09,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042423289] [2021-10-11 02:26:09,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:09,414 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand 3 states. [2021-10-11 02:26:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,447 INFO L93 Difference]: Finished difference Result 161 states and 224 transitions. [2021-10-11 02:26:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:09,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 02:26:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,449 INFO L225 Difference]: With dead ends: 161 [2021-10-11 02:26:09,449 INFO L226 Difference]: Without dead ends: 87 [2021-10-11 02:26:09,449 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 [2021-10-11 02:26:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-11 02:26:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-11 02:26:09,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 02:26:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2021-10-11 02:26:09,454 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 26 [2021-10-11 02:26:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,454 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2021-10-11 02:26:09,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2021-10-11 02:26:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:26:09,455 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:09,455 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] [2021-10-11 02:26:09,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:26:09,456 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:09,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1545848131, now seen corresponding path program 1 times [2021-10-11 02:26:09,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:09,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945214618] [2021-10-11 02:26:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:26:09,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945214618] [2021-10-11 02:26:09,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:09,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:09,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037759602] [2021-10-11 02:26:09,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:09,495 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand 3 states. [2021-10-11 02:26:09,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,551 INFO L93 Difference]: Finished difference Result 132 states and 175 transitions. [2021-10-11 02:26:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:09,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 02:26:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,552 INFO L225 Difference]: With dead ends: 132 [2021-10-11 02:26:09,552 INFO L226 Difference]: Without dead ends: 65 [2021-10-11 02:26:09,553 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 [2021-10-11 02:26:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-11 02:26:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-11 02:26:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-10-11 02:26:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2021-10-11 02:26:09,556 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 26 [2021-10-11 02:26:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,557 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2021-10-11 02:26:09,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2021-10-11 02:26:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 02:26:09,558 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:09,558 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] [2021-10-11 02:26:09,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:26:09,558 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:09,559 INFO L82 PathProgramCache]: Analyzing trace with hash -429138385, now seen corresponding path program 1 times [2021-10-11 02:26:09,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:09,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849331309] [2021-10-11 02:26:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:26:09,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849331309] [2021-10-11 02:26:09,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:09,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:09,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316967159] [2021-10-11 02:26:09,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:09,589 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand 3 states. [2021-10-11 02:26:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:09,620 INFO L93 Difference]: Finished difference Result 106 states and 138 transitions. [2021-10-11 02:26:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:09,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-10-11 02:26:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:09,622 INFO L225 Difference]: With dead ends: 106 [2021-10-11 02:26:09,622 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:09,623 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 [2021-10-11 02:26:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:09,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-10-11 02:26:09,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:09,624 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:09,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:09,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:09,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:26:09,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:09,716 INFO L262 CegarLoopResult]: For program point L250(lines 250 265) no Hoare annotation was computed. [2021-10-11 02:26:09,716 INFO L262 CegarLoopResult]: For program point L118(lines 118 133) no Hoare annotation was computed. [2021-10-11 02:26:09,716 INFO L262 CegarLoopResult]: For program point L52(lines 52 63) no Hoare annotation was computed. [2021-10-11 02:26:09,716 INFO L262 CegarLoopResult]: For program point L366(lines 366 381) no Hoare annotation was computed. [2021-10-11 02:26:09,716 INFO L262 CegarLoopResult]: For program point L234(lines 234 249) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L168(lines 168 179) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L102(lines 102 117) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L258 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))) [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L218(lines 218 233) no Hoare annotation was computed. [2021-10-11 02:26:09,717 INFO L262 CegarLoopResult]: For program point L185(lines 185 284) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L152(lines 152 163) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L334(lines 334 349) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L268(lines 268 279) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L202(lines 202 217) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L136(lines 136 147) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L318(lines 318 333) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L285(lines 285 384) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L252(lines 252 263) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L186(lines 186 201) no Hoare annotation was computed. [2021-10-11 02:26:09,718 INFO L262 CegarLoopResult]: For program point L120(lines 120 131) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L368(lines 368 379) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L302(lines 302 317) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L236(lines 236 247) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L104(lines 104 115) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L352(lines 352 363) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L286(lines 286 301) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L220(lines 220 231) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L88(lines 88 90) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L336(lines 336 347) no Hoare annotation was computed. [2021-10-11 02:26:09,719 INFO L262 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L72(lines 72 74) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L262 CegarLoopResult]: For program point L156(lines 156 158) no Hoare annotation was computed. [2021-10-11 02:26:09,720 INFO L258 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))) [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L272(lines 272 274) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L140(lines 140 142) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L256(lines 256 258) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L124(lines 124 126) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L240(lines 240 242) no Hoare annotation was computed. [2021-10-11 02:26:09,721 INFO L262 CegarLoopResult]: For program point L108(lines 108 110) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L356(lines 356 358) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L224(lines 224 226) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L258 CegarLoopResult]: At program point L373(lines 15 392) the Hoare annotation is: false [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L340(lines 340 342) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2021-10-11 02:26:09,722 INFO L262 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L30(lines 30 45) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L265 CegarLoopResult]: At program point L15(lines 15 392) the Hoare annotation is: true [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L32(lines 32 43) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L82(lines 82 97) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L49(lines 49 100) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-10-11 02:26:09,723 INFO L262 CegarLoopResult]: For program point L50(lines 50 65) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L166(lines 166 181) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L150(lines 150 165) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L84(lines 84 95) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L266(lines 266 281) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L134(lines 134 149) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L101(lines 101 184) no Hoare annotation was computed. [2021-10-11 02:26:09,724 INFO L262 CegarLoopResult]: For program point L68(lines 68 79) no Hoare annotation was computed. [2021-10-11 02:26:09,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:09 BoogieIcfgContainer [2021-10-11 02:26:09,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:09,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:09,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:09,742 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:09,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:07" (3/4) ... [2021-10-11 02:26:09,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:09,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:26:09,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:26:09,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:09,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:09,789 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c927d1-d9af-4087-828d-23293ae6bc60/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:09,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:09,791 INFO L168 Benchmark]: Toolchain (without parser) took 3172.59 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 85.7 MB in the beginning and 77.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,791 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:09,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.59 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 85.5 MB in the beginning and 125.4 MB in the end (delta: -39.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.20 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 123.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,793 INFO L168 Benchmark]: Boogie Preprocessor took 44.62 ms. Allocated memory is still 153.1 MB. Free memory was 123.3 MB in the beginning and 122.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,794 INFO L168 Benchmark]: RCFGBuilder took 784.38 ms. Allocated memory is still 153.1 MB. Free memory was 121.6 MB in the beginning and 91.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,795 INFO L168 Benchmark]: TraceAbstraction took 1926.60 ms. Allocated memory is still 153.1 MB. Free memory was 90.9 MB in the beginning and 79.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,795 INFO L168 Benchmark]: Witness Printer took 47.69 ms. Allocated memory is still 153.1 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:09,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.59 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 85.5 MB in the beginning and 125.4 MB in the end (delta: -39.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.20 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 123.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.62 ms. Allocated memory is still 153.1 MB. Free memory was 123.3 MB in the beginning and 122.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 784.38 ms. Allocated memory is still 153.1 MB. Free memory was 121.6 MB in the beginning and 91.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1926.60 ms. Allocated memory is still 153.1 MB. Free memory was 90.9 MB in the beginning and 79.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 47.69 ms. Allocated memory is still 153.1 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 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: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 870 SDtfs, 271 SDslu, 506 SDs, 0 SdLazy, 271 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred 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, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 5895 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...