./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan --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 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:18:37,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:18:37,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:18:38,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:18:38,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:18:38,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:18:38,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:18:38,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:18:38,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:18:38,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:18:38,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:18:38,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:18:38,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:18:38,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:18:38,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:18:38,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:18:38,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:18:38,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:18:38,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:18:38,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:18:38,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:18:38,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:18:38,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:18:38,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:18:38,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:18:38,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:18:38,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:18:38,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:18:38,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:18:38,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:18:38,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:18:38,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:18:38,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:18:38,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:18:38,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:18:38,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:18:38,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:18:38,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:18:38,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:18:38,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:18:38,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:18:38,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:18:38,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:18:38,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:18:38,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:18:38,185 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:18:38,186 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:18:38,186 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:18:38,186 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:18:38,186 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:18:38,187 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:18:38,187 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:18:38,188 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:18:38,188 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:18:38,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:18:38,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:18:38,189 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:18:38,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:18:38,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:18:38,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:18:38,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:18:38,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:18:38,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:18:38,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:18:38,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:18:38,192 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:18:38,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:18:38,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:18:38,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:18:38,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:18:38,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:18:38,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:18:38,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:18:38,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:18:38,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:18:38,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:18:38,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:18:38,195 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:18:38,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:18:38,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:18:38,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:18:38,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:18:38,196 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-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-11-30 03:18:38,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:18:38,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:18:38,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:18:38,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:18:38,484 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:18:38,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-30 03:18:38,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/data/f84624a50/e3edb26749ca4c939be0efccdc05189b/FLAG59b1831fb [2020-11-30 03:18:39,088 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:18:39,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-11-30 03:18:39,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/data/f84624a50/e3edb26749ca4c939be0efccdc05189b/FLAG59b1831fb [2020-11-30 03:18:39,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/data/f84624a50/e3edb26749ca4c939be0efccdc05189b [2020-11-30 03:18:39,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:18:39,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:18:39,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:39,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:18:39,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:18:39,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:39" (1/1) ... [2020-11-30 03:18:39,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633f7315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:39, skipping insertion in model container [2020-11-30 03:18:39,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:39" (1/1) ... [2020-11-30 03:18:39,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:18:39,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:18:39,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:39,939 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:18:40,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:40,095 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:18:40,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40 WrapperNode [2020-11-30 03:18:40,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:40,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:40,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:18:40,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:18:40,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:40,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:18:40,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:18:40,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:18:40,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... [2020-11-30 03:18:40,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:18:40,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:18:40,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:18:40,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:18:40,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:18:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:18:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:18:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:18:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:18:41,269 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:18:41,271 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-30 03:18:41,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:18:41 BoogieIcfgContainer [2020-11-30 03:18:41,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:18:41,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:18:41,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:18:41,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:18:41,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:18:39" (1/3) ... [2020-11-30 03:18:41,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147cfaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:18:41, skipping insertion in model container [2020-11-30 03:18:41,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:40" (2/3) ... [2020-11-30 03:18:41,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147cfaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:18:41, skipping insertion in model container [2020-11-30 03:18:41,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:18:41" (3/3) ... [2020-11-30 03:18:41,287 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-11-30 03:18:41,299 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:18:41,304 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-30 03:18:41,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-30 03:18:41,343 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:18:41,343 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:18:41,344 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:18:41,344 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:18:41,344 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:18:41,344 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:18:41,344 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:18:41,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:18:41,382 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-11-30 03:18:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:18:41,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:41,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:18:41,391 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:41,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1720831082, now seen corresponding path program 1 times [2020-11-30 03:18:41,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:41,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189376510] [2020-11-30 03:18:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:41,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189376510] [2020-11-30 03:18:41,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:41,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 03:18:41,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376089674] [2020-11-30 03:18:41,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:18:41,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:41,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:18:41,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:18:41,661 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-11-30 03:18:42,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:42,055 INFO L93 Difference]: Finished difference Result 126 states and 200 transitions. [2020-11-30 03:18:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:18:42,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 03:18:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:42,070 INFO L225 Difference]: With dead ends: 126 [2020-11-30 03:18:42,071 INFO L226 Difference]: Without dead ends: 113 [2020-11-30 03:18:42,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:42,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-30 03:18:42,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-30 03:18:42,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-30 03:18:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2020-11-30 03:18:42,142 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 6 [2020-11-30 03:18:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:42,143 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2020-11-30 03:18:42,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:18:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2020-11-30 03:18:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 03:18:42,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:42,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:42,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:18:42,145 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:42,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1806162027, now seen corresponding path program 1 times [2020-11-30 03:18:42,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:42,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135011121] [2020-11-30 03:18:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:42,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135011121] [2020-11-30 03:18:42,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:42,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:18:42,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109589864] [2020-11-30 03:18:42,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:18:42,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:42,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:18:42,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:42,270 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand 5 states. [2020-11-30 03:18:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:42,630 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2020-11-30 03:18:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:18:42,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-30 03:18:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:42,633 INFO L225 Difference]: With dead ends: 116 [2020-11-30 03:18:42,633 INFO L226 Difference]: Without dead ends: 108 [2020-11-30 03:18:42,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:18:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-30 03:18:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-30 03:18:42,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-30 03:18:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2020-11-30 03:18:42,664 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 7 [2020-11-30 03:18:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:42,665 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2020-11-30 03:18:42,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:18:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2020-11-30 03:18:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:18:42,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:42,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:42,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:18:42,669 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:42,670 INFO L82 PathProgramCache]: Analyzing trace with hash 236410579, now seen corresponding path program 1 times [2020-11-30 03:18:42,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:42,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276116172] [2020-11-30 03:18:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:42,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:42,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276116172] [2020-11-30 03:18:42,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:42,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:18:42,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535105445] [2020-11-30 03:18:42,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:18:42,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:42,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:18:42,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:42,806 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand 5 states. [2020-11-30 03:18:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:43,163 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2020-11-30 03:18:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:43,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-30 03:18:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:43,166 INFO L225 Difference]: With dead ends: 108 [2020-11-30 03:18:43,166 INFO L226 Difference]: Without dead ends: 106 [2020-11-30 03:18:43,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-30 03:18:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-11-30 03:18:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-30 03:18:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2020-11-30 03:18:43,182 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 10 [2020-11-30 03:18:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:43,183 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2020-11-30 03:18:43,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:18:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2020-11-30 03:18:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:18:43,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:43,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:43,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:18:43,184 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:43,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:43,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1261200566, now seen corresponding path program 1 times [2020-11-30 03:18:43,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:43,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430925929] [2020-11-30 03:18:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:43,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430925929] [2020-11-30 03:18:43,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:43,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 03:18:43,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770810565] [2020-11-30 03:18:43,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:18:43,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:43,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:18:43,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:18:43,289 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 4 states. [2020-11-30 03:18:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:43,497 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2020-11-30 03:18:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:18:43,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 03:18:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:43,500 INFO L225 Difference]: With dead ends: 106 [2020-11-30 03:18:43,500 INFO L226 Difference]: Without dead ends: 102 [2020-11-30 03:18:43,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-30 03:18:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-11-30 03:18:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 03:18:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2020-11-30 03:18:43,510 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 11 [2020-11-30 03:18:43,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:43,510 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2020-11-30 03:18:43,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:18:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2020-11-30 03:18:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:18:43,511 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:43,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:43,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:18:43,512 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash -423610358, now seen corresponding path program 1 times [2020-11-30 03:18:43,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:43,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642836481] [2020-11-30 03:18:43,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:43,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642836481] [2020-11-30 03:18:43,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:43,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:18:43,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843587835] [2020-11-30 03:18:43,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:18:43,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:43,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:18:43,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:43,626 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 5 states. [2020-11-30 03:18:43,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:43,986 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-11-30 03:18:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:43,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 03:18:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:43,988 INFO L225 Difference]: With dead ends: 120 [2020-11-30 03:18:43,988 INFO L226 Difference]: Without dead ends: 118 [2020-11-30 03:18:43,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:43,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-30 03:18:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2020-11-30 03:18:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-30 03:18:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2020-11-30 03:18:44,011 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 12 [2020-11-30 03:18:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:44,012 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2020-11-30 03:18:44,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:18:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2020-11-30 03:18:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:18:44,013 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:44,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:44,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 03:18:44,013 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:44,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:44,014 INFO L82 PathProgramCache]: Analyzing trace with hash -421517046, now seen corresponding path program 1 times [2020-11-30 03:18:44,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:44,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104102456] [2020-11-30 03:18:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:44,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104102456] [2020-11-30 03:18:44,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:44,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:18:44,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287924170] [2020-11-30 03:18:44,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:18:44,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:44,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:18:44,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:44,077 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand 5 states. [2020-11-30 03:18:44,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:44,366 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-11-30 03:18:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:44,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 03:18:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:44,373 INFO L225 Difference]: With dead ends: 100 [2020-11-30 03:18:44,373 INFO L226 Difference]: Without dead ends: 98 [2020-11-30 03:18:44,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-30 03:18:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-11-30 03:18:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-30 03:18:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-11-30 03:18:44,381 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 12 [2020-11-30 03:18:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:44,381 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-11-30 03:18:44,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:18:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-11-30 03:18:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:18:44,383 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:44,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:44,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 03:18:44,383 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:44,384 INFO L82 PathProgramCache]: Analyzing trace with hash -245102512, now seen corresponding path program 1 times [2020-11-30 03:18:44,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:44,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417273277] [2020-11-30 03:18:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:44,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417273277] [2020-11-30 03:18:44,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:44,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:18:44,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139999495] [2020-11-30 03:18:44,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:18:44,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:44,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:18:44,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:44,433 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 5 states. [2020-11-30 03:18:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:44,707 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2020-11-30 03:18:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:44,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-30 03:18:44,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:44,709 INFO L225 Difference]: With dead ends: 119 [2020-11-30 03:18:44,709 INFO L226 Difference]: Without dead ends: 117 [2020-11-30 03:18:44,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-30 03:18:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 96. [2020-11-30 03:18:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-30 03:18:44,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2020-11-30 03:18:44,715 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 13 [2020-11-30 03:18:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:44,716 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2020-11-30 03:18:44,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:18:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2020-11-30 03:18:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:18:44,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:44,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:44,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 03:18:44,717 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:44,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:44,717 INFO L82 PathProgramCache]: Analyzing trace with hash -247013107, now seen corresponding path program 1 times [2020-11-30 03:18:44,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:44,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569830761] [2020-11-30 03:18:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:44,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569830761] [2020-11-30 03:18:44,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:44,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:44,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10666507] [2020-11-30 03:18:44,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:44,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:44,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:44,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:44,846 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand 6 states. [2020-11-30 03:18:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:45,131 INFO L93 Difference]: Finished difference Result 129 states and 145 transitions. [2020-11-30 03:18:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:18:45,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-30 03:18:45,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:45,132 INFO L225 Difference]: With dead ends: 129 [2020-11-30 03:18:45,132 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 03:18:45,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:18:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 03:18:45,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2020-11-30 03:18:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 03:18:45,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-11-30 03:18:45,152 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 13 [2020-11-30 03:18:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:45,152 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-11-30 03:18:45,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-11-30 03:18:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:18:45,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:45,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:45,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 03:18:45,154 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:45,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:45,155 INFO L82 PathProgramCache]: Analyzing trace with hash -182120367, now seen corresponding path program 1 times [2020-11-30 03:18:45,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:45,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194736085] [2020-11-30 03:18:45,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:45,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194736085] [2020-11-30 03:18:45,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:45,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:45,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251422900] [2020-11-30 03:18:45,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:45,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:45,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:45,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:45,301 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2020-11-30 03:18:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:45,622 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2020-11-30 03:18:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:18:45,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-30 03:18:45,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:45,624 INFO L225 Difference]: With dead ends: 112 [2020-11-30 03:18:45,624 INFO L226 Difference]: Without dead ends: 108 [2020-11-30 03:18:45,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:18:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-30 03:18:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2020-11-30 03:18:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-30 03:18:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-11-30 03:18:45,629 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 13 [2020-11-30 03:18:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:45,629 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-11-30 03:18:45,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-11-30 03:18:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 03:18:45,635 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:45,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:45,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 03:18:45,636 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash 991762866, now seen corresponding path program 1 times [2020-11-30 03:18:45,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:45,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734608] [2020-11-30 03:18:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:45,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734608] [2020-11-30 03:18:45,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:45,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:45,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539248864] [2020-11-30 03:18:45,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:45,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:45,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:45,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:45,827 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-11-30 03:18:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:46,131 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-11-30 03:18:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:18:46,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 03:18:46,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:46,134 INFO L225 Difference]: With dead ends: 130 [2020-11-30 03:18:46,135 INFO L226 Difference]: Without dead ends: 128 [2020-11-30 03:18:46,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:18:46,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-30 03:18:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 106. [2020-11-30 03:18:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-30 03:18:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-11-30 03:18:46,140 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 14 [2020-11-30 03:18:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:46,140 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-11-30 03:18:46,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-11-30 03:18:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 03:18:46,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:46,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:46,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 03:18:46,142 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:46,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:46,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1156204912, now seen corresponding path program 1 times [2020-11-30 03:18:46,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:46,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995851940] [2020-11-30 03:18:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:46,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995851940] [2020-11-30 03:18:46,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:46,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 03:18:46,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278018536] [2020-11-30 03:18:46,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:18:46,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:46,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:18:46,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:18:46,247 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 4 states. [2020-11-30 03:18:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:46,380 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2020-11-30 03:18:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:18:46,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 03:18:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:46,381 INFO L225 Difference]: With dead ends: 106 [2020-11-30 03:18:46,381 INFO L226 Difference]: Without dead ends: 104 [2020-11-30 03:18:46,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-11-30 03:18:46,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-30 03:18:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-30 03:18:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-11-30 03:18:46,387 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 15 [2020-11-30 03:18:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:46,388 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-11-30 03:18:46,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:18:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-11-30 03:18:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 03:18:46,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:46,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:46,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 03:18:46,392 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:46,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:46,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1482607780, now seen corresponding path program 1 times [2020-11-30 03:18:46,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:46,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575479943] [2020-11-30 03:18:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:46,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575479943] [2020-11-30 03:18:46,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:46,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 03:18:46,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134288039] [2020-11-30 03:18:46,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:18:46,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:46,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:18:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:18:46,479 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 4 states. [2020-11-30 03:18:46,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:46,694 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2020-11-30 03:18:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:18:46,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-30 03:18:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:46,698 INFO L225 Difference]: With dead ends: 104 [2020-11-30 03:18:46,698 INFO L226 Difference]: Without dead ends: 100 [2020-11-30 03:18:46,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:18:46,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-30 03:18:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-30 03:18:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-30 03:18:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-11-30 03:18:46,711 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 16 [2020-11-30 03:18:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:46,711 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-11-30 03:18:46,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:18:46,711 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-11-30 03:18:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 03:18:46,712 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:46,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:46,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 03:18:46,713 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:46,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:46,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1302675821, now seen corresponding path program 1 times [2020-11-30 03:18:46,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:46,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753444854] [2020-11-30 03:18:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:46,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753444854] [2020-11-30 03:18:46,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:46,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:46,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221753872] [2020-11-30 03:18:46,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:46,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:46,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:46,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:46,863 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2020-11-30 03:18:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:47,258 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2020-11-30 03:18:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:18:47,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 03:18:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:47,260 INFO L225 Difference]: With dead ends: 116 [2020-11-30 03:18:47,261 INFO L226 Difference]: Without dead ends: 114 [2020-11-30 03:18:47,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:18:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-30 03:18:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 95. [2020-11-30 03:18:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-30 03:18:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2020-11-30 03:18:47,269 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 17 [2020-11-30 03:18:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:47,270 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2020-11-30 03:18:47,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2020-11-30 03:18:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 03:18:47,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:47,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:47,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 03:18:47,273 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:47,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:47,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1565723134, now seen corresponding path program 1 times [2020-11-30 03:18:47,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:47,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859380608] [2020-11-30 03:18:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:47,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859380608] [2020-11-30 03:18:47,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:47,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:47,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387763717] [2020-11-30 03:18:47,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:47,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:47,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:47,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:47,424 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 6 states. [2020-11-30 03:18:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:47,779 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2020-11-30 03:18:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:18:47,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 03:18:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:47,781 INFO L225 Difference]: With dead ends: 108 [2020-11-30 03:18:47,781 INFO L226 Difference]: Without dead ends: 106 [2020-11-30 03:18:47,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:18:47,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-30 03:18:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2020-11-30 03:18:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 03:18:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2020-11-30 03:18:47,787 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 17 [2020-11-30 03:18:47,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:47,787 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2020-11-30 03:18:47,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:47,787 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2020-11-30 03:18:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 03:18:47,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:47,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:47,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 03:18:47,789 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:47,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:47,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1500830394, now seen corresponding path program 1 times [2020-11-30 03:18:47,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:47,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253388730] [2020-11-30 03:18:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:47,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:47,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253388730] [2020-11-30 03:18:47,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:47,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:18:47,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869600909] [2020-11-30 03:18:47,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:18:47,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:47,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:18:47,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:18:47,877 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 6 states. [2020-11-30 03:18:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:48,175 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2020-11-30 03:18:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:48,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 03:18:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:48,177 INFO L225 Difference]: With dead ends: 90 [2020-11-30 03:18:48,177 INFO L226 Difference]: Without dead ends: 53 [2020-11-30 03:18:48,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:18:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-30 03:18:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-30 03:18:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 03:18:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2020-11-30 03:18:48,180 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 17 [2020-11-30 03:18:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:48,180 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2020-11-30 03:18:48,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:18:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2020-11-30 03:18:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-30 03:18:48,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:48,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:48,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 03:18:48,181 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:48,182 INFO L82 PathProgramCache]: Analyzing trace with hash -989602732, now seen corresponding path program 1 times [2020-11-30 03:18:48,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:48,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332311373] [2020-11-30 03:18:48,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:48,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332311373] [2020-11-30 03:18:48,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:48,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-30 03:18:48,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929827459] [2020-11-30 03:18:48,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 03:18:48,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:48,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 03:18:48,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:18:48,331 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 13 states. [2020-11-30 03:18:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:48,507 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2020-11-30 03:18:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 03:18:48,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-11-30 03:18:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:48,508 INFO L225 Difference]: With dead ends: 53 [2020-11-30 03:18:48,508 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 03:18:48,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-11-30 03:18:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 03:18:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-30 03:18:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 03:18:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-11-30 03:18:48,511 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 43 [2020-11-30 03:18:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:48,511 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-11-30 03:18:48,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 03:18:48,511 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-11-30 03:18:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-30 03:18:48,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:48,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:48,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 03:18:48,513 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:48,513 INFO L82 PathProgramCache]: Analyzing trace with hash -989582872, now seen corresponding path program 1 times [2020-11-30 03:18:48,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:48,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7760754] [2020-11-30 03:18:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:48,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7760754] [2020-11-30 03:18:48,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:48,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-30 03:18:48,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607319741] [2020-11-30 03:18:48,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 03:18:48,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:48,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 03:18:48,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:18:48,709 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 13 states. [2020-11-30 03:18:48,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:48,925 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-11-30 03:18:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 03:18:48,926 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-11-30 03:18:48,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:48,927 INFO L225 Difference]: With dead ends: 58 [2020-11-30 03:18:48,927 INFO L226 Difference]: Without dead ends: 56 [2020-11-30 03:18:48,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-11-30 03:18:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-30 03:18:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2020-11-30 03:18:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-30 03:18:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-11-30 03:18:48,929 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2020-11-30 03:18:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:48,929 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-11-30 03:18:48,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 03:18:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-11-30 03:18:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 03:18:48,930 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:48,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:48,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 03:18:48,930 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:48,931 INFO L82 PathProgramCache]: Analyzing trace with hash -612907167, now seen corresponding path program 1 times [2020-11-30 03:18:48,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:48,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138031928] [2020-11-30 03:18:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:49,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138031928] [2020-11-30 03:18:49,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:49,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 03:18:49,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645055113] [2020-11-30 03:18:49,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:18:49,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:49,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:18:49,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:18:49,135 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 7 states. [2020-11-30 03:18:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:49,274 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-11-30 03:18:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:18:49,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-11-30 03:18:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:49,275 INFO L225 Difference]: With dead ends: 49 [2020-11-30 03:18:49,275 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 03:18:49,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:18:49,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 03:18:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 03:18:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 03:18:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2020-11-30 03:18:49,278 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 44 [2020-11-30 03:18:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:49,279 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2020-11-30 03:18:49,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:18:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2020-11-30 03:18:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 03:18:49,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:18:49,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:18:49,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 03:18:49,280 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:18:49,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:18:49,280 INFO L82 PathProgramCache]: Analyzing trace with hash -612291487, now seen corresponding path program 1 times [2020-11-30 03:18:49,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:18:49,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126025379] [2020-11-30 03:18:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:18:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:18:49,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:18:49,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126025379] [2020-11-30 03:18:49,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:18:49,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 03:18:49,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226390721] [2020-11-30 03:18:49,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:18:49,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:18:49,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:18:49,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:18:49,460 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 7 states. [2020-11-30 03:18:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:18:49,606 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-11-30 03:18:49,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:18:49,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-11-30 03:18:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:18:49,607 INFO L225 Difference]: With dead ends: 49 [2020-11-30 03:18:49,607 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:18:49,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:18:49,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:18:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:18:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:18:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:18:49,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-30 03:18:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:18:49,609 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:18:49,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:18:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:18:49,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:18:49,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 03:18:49,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:18:49,803 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,803 INFO L274 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,804 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,805 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-11-30 03:18:49,806 INFO L274 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-11-30 03:18:49,808 INFO L274 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-11-30 03:18:49,809 INFO L277 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-11-30 03:18:49,809 INFO L274 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-11-30 03:18:49,809 INFO L274 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-11-30 03:18:49,809 INFO L274 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-11-30 03:18:49,809 INFO L274 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-11-30 03:18:49,809 INFO L270 CegarLoopResult]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-11-30 03:18:49,810 INFO L274 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-11-30 03:18:49,811 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,811 INFO L274 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-11-30 03:18:49,811 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,811 INFO L270 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-30 03:18:49,811 INFO L274 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-11-30 03:18:49,811 INFO L274 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-11-30 03:18:49,812 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,812 INFO L274 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-11-30 03:18:49,813 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,813 INFO L277 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-11-30 03:18:49,813 INFO L274 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-11-30 03:18:49,813 INFO L274 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-11-30 03:18:49,813 INFO L274 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-11-30 03:18:49,813 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L270 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-11-30 03:18:49,814 INFO L274 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L270 CegarLoopResult]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-11-30 03:18:49,815 INFO L274 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,816 INFO L274 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-11-30 03:18:49,817 INFO L274 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-11-30 03:18:49,818 INFO L274 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-11-30 03:18:49,819 INFO L274 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-11-30 03:18:49,819 INFO L274 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-11-30 03:18:49,819 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,820 INFO L274 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-11-30 03:18:49,820 INFO L274 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-11-30 03:18:49,820 INFO L274 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-11-30 03:18:49,820 INFO L274 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-11-30 03:18:49,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-11-30 03:18:49,823 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 03:18:49,825 INFO L274 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-11-30 03:18:49,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:18:49 BoogieIcfgContainer [2020-11-30 03:18:49,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:18:49,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:18:49,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:18:49,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:18:49,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:18:41" (3/4) ... [2020-11-30 03:18:49,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:18:49,881 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 03:18:49,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 03:18:49,883 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:18:49,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:18:49,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bdd6c65a-58d9-453e-a9f7-2e7e6d3f7dd9/bin/utaipan/witness.graphml [2020-11-30 03:18:49,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:18:49,996 INFO L168 Benchmark]: Toolchain (without parser) took 10560.69 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 55.1 MB in the beginning and 85.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,997 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:18:49,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.64 ms. Allocated memory is still 86.0 MB. Free memory was 54.9 MB in the beginning and 57.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.26 ms. Allocated memory is still 86.0 MB. Free memory was 57.6 MB in the beginning and 54.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,998 INFO L168 Benchmark]: Boogie Preprocessor took 75.07 ms. Allocated memory is still 86.0 MB. Free memory was 54.4 MB in the beginning and 52.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,998 INFO L168 Benchmark]: RCFGBuilder took 1012.96 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 52.2 MB in the beginning and 55.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,999 INFO L168 Benchmark]: TraceAbstraction took 8571.08 ms. Allocated memory was 113.2 MB in the beginning and 172.0 MB in the end (delta: 58.7 MB). Free memory was 55.0 MB in the beginning and 98.5 MB in the end (delta: -43.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:49,999 INFO L168 Benchmark]: Witness Printer took 143.67 ms. Allocated memory is still 172.0 MB. Free memory was 97.4 MB in the beginning and 85.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:18:50,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 657.64 ms. Allocated memory is still 86.0 MB. Free memory was 54.9 MB in the beginning and 57.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.26 ms. Allocated memory is still 86.0 MB. Free memory was 57.6 MB in the beginning and 54.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.07 ms. Allocated memory is still 86.0 MB. Free memory was 54.4 MB in the beginning and 52.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1012.96 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 52.2 MB in the beginning and 55.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8571.08 ms. Allocated memory was 113.2 MB in the beginning and 172.0 MB in the end (delta: 58.7 MB). Free memory was 55.0 MB in the beginning and 98.5 MB in the end (delta: -43.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 143.67 ms. Allocated memory is still 172.0 MB. Free memory was 97.4 MB in the beginning and 85.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.2s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1016 SDtfs, 1875 SDslu, 1359 SDs, 0 SdLazy, 3476 SolverSat, 402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, 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, 19 MinimizatonAttempts, 133 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4287 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 257 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 28920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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...