./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3bbefcee290f98530e25ab3f5cc4cda5aa0150b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:59,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:59,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:59,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:59,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:59,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:59,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:59,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:59,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:59,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:59,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:59,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:59,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:59,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:59,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:59,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:59,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:59,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:59,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:59,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:59,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:59,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:59,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:59,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:59,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:59,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:59,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:59,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:59,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:59,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:59,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:59,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:59,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:59,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:59,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:59,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:59,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:59,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:59,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:59,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:59,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:59,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:21:59,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:59,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:59,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:59,245 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:59,245 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:59,246 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:59,246 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:59,246 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:59,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:59,246 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:59,247 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:59,248 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:59,248 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:59,248 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:59,249 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:59,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:59,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:59,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:59,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:59,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:59,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:59,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:59,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:59,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:59,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:59,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:59,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:59,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:59,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:59,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:59,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:59,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:59,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:59,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:59,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:59,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:59,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:59,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:59,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:59,257 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2021-10-11 02:21:59,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:59,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:59,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:59,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:59,602 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:59,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2021-10-11 02:21:59,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/data/fc8d22362/731d1a667a88452db6c1e0b1489f52d4/FLAGf08618eb4 [2021-10-11 02:22:00,293 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:00,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2021-10-11 02:22:00,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/data/fc8d22362/731d1a667a88452db6c1e0b1489f52d4/FLAGf08618eb4 [2021-10-11 02:22:00,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/data/fc8d22362/731d1a667a88452db6c1e0b1489f52d4 [2021-10-11 02:22:00,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:00,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:00,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:00,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:00,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:00,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:00" (1/1) ... [2021-10-11 02:22:00,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560fcca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:00, skipping insertion in model container [2021-10-11 02:22:00,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:00" (1/1) ... [2021-10-11 02:22:00,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:00,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:00,952 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c[42831,42844] [2021-10-11 02:22:00,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:00,970 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:01,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c[42831,42844] [2021-10-11 02:22:01,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:01,068 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01 WrapperNode [2021-10-11 02:22:01,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:01,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:01,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:01,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:01,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:01,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:01,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:01,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:01,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... [2021-10-11 02:22:01,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:01,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:01,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:01,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:01,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:22:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:01,439 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:22:02,037 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-11 02:22:02,038 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-11 02:22:02,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:02,470 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:22:02,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:02 BoogieIcfgContainer [2021-10-11 02:22:02,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:02,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:02,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:02,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:02,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:00" (1/3) ... [2021-10-11 02:22:02,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4583bb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:02, skipping insertion in model container [2021-10-11 02:22:02,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:01" (2/3) ... [2021-10-11 02:22:02,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4583bb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:02, skipping insertion in model container [2021-10-11 02:22:02,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:02" (3/3) ... [2021-10-11 02:22:02,483 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2021-10-11 02:22:02,498 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:02,502 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:22:02,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:22:02,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:02,540 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:02,540 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:02,540 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:02,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:02,541 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:02,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:02,541 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2021-10-11 02:22:02,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 02:22:02,566 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:02,567 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] [2021-10-11 02:22:02,568 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:02,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1718029911, now seen corresponding path program 1 times [2021-10-11 02:22:02,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:02,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708690893] [2021-10-11 02:22:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:02,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708690893] [2021-10-11 02:22:02,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:02,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:02,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715818873] [2021-10-11 02:22:02,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:02,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:02,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:02,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:02,898 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 3 states. [2021-10-11 02:22:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:03,259 INFO L93 Difference]: Finished difference Result 261 states and 456 transitions. [2021-10-11 02:22:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:03,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2021-10-11 02:22:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:03,286 INFO L225 Difference]: With dead ends: 261 [2021-10-11 02:22:03,289 INFO L226 Difference]: Without dead ends: 150 [2021-10-11 02:22:03,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-10-11 02:22:03,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2021-10-11 02:22:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-10-11 02:22:03,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 232 transitions. [2021-10-11 02:22:03,376 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 232 transitions. Word has length 40 [2021-10-11 02:22:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:03,377 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 232 transitions. [2021-10-11 02:22:03,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 232 transitions. [2021-10-11 02:22:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-11 02:22:03,381 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:03,381 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] [2021-10-11 02:22:03,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:22:03,382 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:03,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1939271527, now seen corresponding path program 1 times [2021-10-11 02:22:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:03,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951293948] [2021-10-11 02:22:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:03,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951293948] [2021-10-11 02:22:03,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:03,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:03,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460586176] [2021-10-11 02:22:03,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:03,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:03,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:03,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:03,544 INFO L87 Difference]: Start difference. First operand 144 states and 232 transitions. Second operand 3 states. [2021-10-11 02:22:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:03,794 INFO L93 Difference]: Finished difference Result 333 states and 546 transitions. [2021-10-11 02:22:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:03,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2021-10-11 02:22:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:03,802 INFO L225 Difference]: With dead ends: 333 [2021-10-11 02:22:03,802 INFO L226 Difference]: Without dead ends: 189 [2021-10-11 02:22:03,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-10-11 02:22:03,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 183. [2021-10-11 02:22:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2021-10-11 02:22:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 305 transitions. [2021-10-11 02:22:03,833 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 305 transitions. Word has length 41 [2021-10-11 02:22:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:03,834 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 305 transitions. [2021-10-11 02:22:03,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 305 transitions. [2021-10-11 02:22:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-11 02:22:03,844 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:03,844 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:03,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:22:03,845 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:03,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:03,845 INFO L82 PathProgramCache]: Analyzing trace with hash 150413504, now seen corresponding path program 1 times [2021-10-11 02:22:03,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:03,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896635267] [2021-10-11 02:22:03,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:03,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896635267] [2021-10-11 02:22:03,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:03,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:03,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356436634] [2021-10-11 02:22:03,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:03,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:03,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:03,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:03,914 INFO L87 Difference]: Start difference. First operand 183 states and 305 transitions. Second operand 3 states. [2021-10-11 02:22:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:04,087 INFO L93 Difference]: Finished difference Result 393 states and 662 transitions. [2021-10-11 02:22:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:04,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2021-10-11 02:22:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:04,090 INFO L225 Difference]: With dead ends: 393 [2021-10-11 02:22:04,090 INFO L226 Difference]: Without dead ends: 212 [2021-10-11 02:22:04,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-11 02:22:04,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-10-11 02:22:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-10-11 02:22:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 357 transitions. [2021-10-11 02:22:04,103 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 357 transitions. Word has length 67 [2021-10-11 02:22:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:04,103 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 357 transitions. [2021-10-11 02:22:04,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 357 transitions. [2021-10-11 02:22:04,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-11 02:22:04,106 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:04,106 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:04,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:22:04,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:04,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1015701275, now seen corresponding path program 1 times [2021-10-11 02:22:04,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:04,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805409332] [2021-10-11 02:22:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:04,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805409332] [2021-10-11 02:22:04,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:04,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:04,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563582713] [2021-10-11 02:22:04,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:04,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:04,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:04,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,166 INFO L87 Difference]: Start difference. First operand 212 states and 357 transitions. Second operand 3 states. [2021-10-11 02:22:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:04,323 INFO L93 Difference]: Finished difference Result 437 states and 736 transitions. [2021-10-11 02:22:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:04,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-10-11 02:22:04,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:04,326 INFO L225 Difference]: With dead ends: 437 [2021-10-11 02:22:04,326 INFO L226 Difference]: Without dead ends: 227 [2021-10-11 02:22:04,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-11 02:22:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2021-10-11 02:22:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-10-11 02:22:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 376 transitions. [2021-10-11 02:22:04,346 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 376 transitions. Word has length 78 [2021-10-11 02:22:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:04,348 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 376 transitions. [2021-10-11 02:22:04,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 376 transitions. [2021-10-11 02:22:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-11 02:22:04,351 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:04,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:04,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:22:04,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:04,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:04,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1494572002, now seen corresponding path program 1 times [2021-10-11 02:22:04,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:04,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312479314] [2021-10-11 02:22:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:04,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312479314] [2021-10-11 02:22:04,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:04,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:04,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653152060] [2021-10-11 02:22:04,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:04,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:04,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:04,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,468 INFO L87 Difference]: Start difference. First operand 225 states and 376 transitions. Second operand 3 states. [2021-10-11 02:22:04,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:04,691 INFO L93 Difference]: Finished difference Result 489 states and 823 transitions. [2021-10-11 02:22:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:04,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-10-11 02:22:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:04,694 INFO L225 Difference]: With dead ends: 489 [2021-10-11 02:22:04,694 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 02:22:04,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 02:22:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2021-10-11 02:22:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-10-11 02:22:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 444 transitions. [2021-10-11 02:22:04,706 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 444 transitions. Word has length 78 [2021-10-11 02:22:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:04,706 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 444 transitions. [2021-10-11 02:22:04,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 444 transitions. [2021-10-11 02:22:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-11 02:22:04,707 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:04,708 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:04,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:22:04,708 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1755401318, now seen corresponding path program 1 times [2021-10-11 02:22:04,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:04,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915507371] [2021-10-11 02:22:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:04,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915507371] [2021-10-11 02:22:04,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:04,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:04,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026133647] [2021-10-11 02:22:04,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:04,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:04,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:04,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,759 INFO L87 Difference]: Start difference. First operand 263 states and 444 transitions. Second operand 3 states. [2021-10-11 02:22:04,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:04,930 INFO L93 Difference]: Finished difference Result 526 states and 888 transitions. [2021-10-11 02:22:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:04,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2021-10-11 02:22:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:04,936 INFO L225 Difference]: With dead ends: 526 [2021-10-11 02:22:04,936 INFO L226 Difference]: Without dead ends: 265 [2021-10-11 02:22:04,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-11 02:22:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-11 02:22:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-10-11 02:22:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 440 transitions. [2021-10-11 02:22:04,953 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 440 transitions. Word has length 79 [2021-10-11 02:22:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:04,953 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 440 transitions. [2021-10-11 02:22:04,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 440 transitions. [2021-10-11 02:22:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-11 02:22:04,957 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:04,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:04,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:22:04,957 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:04,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:04,958 INFO L82 PathProgramCache]: Analyzing trace with hash -186544590, now seen corresponding path program 1 times [2021-10-11 02:22:04,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:04,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124575287] [2021-10-11 02:22:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:05,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124575287] [2021-10-11 02:22:05,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:05,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:05,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573874343] [2021-10-11 02:22:05,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:05,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:05,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,041 INFO L87 Difference]: Start difference. First operand 263 states and 440 transitions. Second operand 3 states. [2021-10-11 02:22:05,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:05,237 INFO L93 Difference]: Finished difference Result 527 states and 881 transitions. [2021-10-11 02:22:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:05,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2021-10-11 02:22:05,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:05,240 INFO L225 Difference]: With dead ends: 527 [2021-10-11 02:22:05,240 INFO L226 Difference]: Without dead ends: 264 [2021-10-11 02:22:05,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-11 02:22:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2021-10-11 02:22:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-10-11 02:22:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 435 transitions. [2021-10-11 02:22:05,252 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 435 transitions. Word has length 79 [2021-10-11 02:22:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:05,253 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 435 transitions. [2021-10-11 02:22:05,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 435 transitions. [2021-10-11 02:22:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-11 02:22:05,254 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:05,254 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:05,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:22:05,255 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:05,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2131459841, now seen corresponding path program 1 times [2021-10-11 02:22:05,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:05,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644969804] [2021-10-11 02:22:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-11 02:22:05,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644969804] [2021-10-11 02:22:05,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:05,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:05,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752876396] [2021-10-11 02:22:05,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:05,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:05,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:05,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,293 INFO L87 Difference]: Start difference. First operand 261 states and 435 transitions. Second operand 3 states. [2021-10-11 02:22:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:05,439 INFO L93 Difference]: Finished difference Result 527 states and 877 transitions. [2021-10-11 02:22:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:05,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2021-10-11 02:22:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:05,442 INFO L225 Difference]: With dead ends: 527 [2021-10-11 02:22:05,442 INFO L226 Difference]: Without dead ends: 268 [2021-10-11 02:22:05,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-10-11 02:22:05,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2021-10-11 02:22:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2021-10-11 02:22:05,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 438 transitions. [2021-10-11 02:22:05,461 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 438 transitions. Word has length 88 [2021-10-11 02:22:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:05,462 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 438 transitions. [2021-10-11 02:22:05,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 438 transitions. [2021-10-11 02:22:05,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-11 02:22:05,463 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:05,464 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:05,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:22:05,464 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:05,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1841082440, now seen corresponding path program 1 times [2021-10-11 02:22:05,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:05,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095391454] [2021-10-11 02:22:05,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:05,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095391454] [2021-10-11 02:22:05,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:05,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:05,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998550690] [2021-10-11 02:22:05,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:05,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:05,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:05,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,548 INFO L87 Difference]: Start difference. First operand 268 states and 438 transitions. Second operand 3 states. [2021-10-11 02:22:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:05,721 INFO L93 Difference]: Finished difference Result 563 states and 923 transitions. [2021-10-11 02:22:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:05,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2021-10-11 02:22:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:05,723 INFO L225 Difference]: With dead ends: 563 [2021-10-11 02:22:05,724 INFO L226 Difference]: Without dead ends: 297 [2021-10-11 02:22:05,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-11 02:22:05,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2021-10-11 02:22:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2021-10-11 02:22:05,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 481 transitions. [2021-10-11 02:22:05,738 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 481 transitions. Word has length 92 [2021-10-11 02:22:05,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:05,741 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 481 transitions. [2021-10-11 02:22:05,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:05,742 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 481 transitions. [2021-10-11 02:22:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-11 02:22:05,743 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:05,743 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:05,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:22:05,744 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:05,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:05,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1403380381, now seen corresponding path program 1 times [2021-10-11 02:22:05,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:05,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677593092] [2021-10-11 02:22:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:05,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677593092] [2021-10-11 02:22:05,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:05,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:05,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740339404] [2021-10-11 02:22:05,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:05,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:05,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:05,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,799 INFO L87 Difference]: Start difference. First operand 295 states and 481 transitions. Second operand 3 states. [2021-10-11 02:22:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:05,969 INFO L93 Difference]: Finished difference Result 590 states and 962 transitions. [2021-10-11 02:22:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:05,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2021-10-11 02:22:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:05,972 INFO L225 Difference]: With dead ends: 590 [2021-10-11 02:22:05,972 INFO L226 Difference]: Without dead ends: 297 [2021-10-11 02:22:05,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:05,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-11 02:22:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2021-10-11 02:22:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2021-10-11 02:22:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 477 transitions. [2021-10-11 02:22:05,986 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 477 transitions. Word has length 93 [2021-10-11 02:22:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:05,986 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 477 transitions. [2021-10-11 02:22:05,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 477 transitions. [2021-10-11 02:22:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-11 02:22:05,988 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:05,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:05,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:22:05,988 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash 122717256, now seen corresponding path program 1 times [2021-10-11 02:22:05,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:05,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997560503] [2021-10-11 02:22:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:06,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997560503] [2021-10-11 02:22:06,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:06,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:06,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728531745] [2021-10-11 02:22:06,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:06,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:06,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:06,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,042 INFO L87 Difference]: Start difference. First operand 295 states and 477 transitions. Second operand 3 states. [2021-10-11 02:22:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:06,211 INFO L93 Difference]: Finished difference Result 621 states and 1008 transitions. [2021-10-11 02:22:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:06,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2021-10-11 02:22:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:06,215 INFO L225 Difference]: With dead ends: 621 [2021-10-11 02:22:06,215 INFO L226 Difference]: Without dead ends: 328 [2021-10-11 02:22:06,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-10-11 02:22:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2021-10-11 02:22:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2021-10-11 02:22:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 515 transitions. [2021-10-11 02:22:06,230 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 515 transitions. Word has length 94 [2021-10-11 02:22:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:06,230 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 515 transitions. [2021-10-11 02:22:06,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 515 transitions. [2021-10-11 02:22:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-11 02:22:06,242 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:06,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:06,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:22:06,243 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:06,245 INFO L82 PathProgramCache]: Analyzing trace with hash 793849257, now seen corresponding path program 1 times [2021-10-11 02:22:06,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:06,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505561459] [2021-10-11 02:22:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-11 02:22:06,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505561459] [2021-10-11 02:22:06,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:06,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:06,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134874877] [2021-10-11 02:22:06,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:06,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:06,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:06,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,305 INFO L87 Difference]: Start difference. First operand 320 states and 515 transitions. Second operand 3 states. [2021-10-11 02:22:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:06,458 INFO L93 Difference]: Finished difference Result 659 states and 1061 transitions. [2021-10-11 02:22:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:06,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2021-10-11 02:22:06,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:06,461 INFO L225 Difference]: With dead ends: 659 [2021-10-11 02:22:06,461 INFO L226 Difference]: Without dead ends: 341 [2021-10-11 02:22:06,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-11 02:22:06,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2021-10-11 02:22:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2021-10-11 02:22:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 540 transitions. [2021-10-11 02:22:06,478 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 540 transitions. Word has length 95 [2021-10-11 02:22:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:06,479 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 540 transitions. [2021-10-11 02:22:06,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 540 transitions. [2021-10-11 02:22:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-11 02:22:06,481 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:06,481 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:06,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:22:06,482 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2009495597, now seen corresponding path program 1 times [2021-10-11 02:22:06,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:06,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727172401] [2021-10-11 02:22:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-11 02:22:06,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727172401] [2021-10-11 02:22:06,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:06,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:06,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461102499] [2021-10-11 02:22:06,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:06,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:06,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:06,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,538 INFO L87 Difference]: Start difference. First operand 339 states and 540 transitions. Second operand 3 states. [2021-10-11 02:22:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:06,716 INFO L93 Difference]: Finished difference Result 684 states and 1091 transitions. [2021-10-11 02:22:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:06,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2021-10-11 02:22:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:06,719 INFO L225 Difference]: With dead ends: 684 [2021-10-11 02:22:06,719 INFO L226 Difference]: Without dead ends: 347 [2021-10-11 02:22:06,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-10-11 02:22:06,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 339. [2021-10-11 02:22:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2021-10-11 02:22:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 535 transitions. [2021-10-11 02:22:06,739 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 535 transitions. Word has length 95 [2021-10-11 02:22:06,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:06,740 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 535 transitions. [2021-10-11 02:22:06,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 535 transitions. [2021-10-11 02:22:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-11 02:22:06,741 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:06,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:06,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:22:06,742 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:06,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:06,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2079233634, now seen corresponding path program 1 times [2021-10-11 02:22:06,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:06,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58414274] [2021-10-11 02:22:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-11 02:22:06,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58414274] [2021-10-11 02:22:06,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:06,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:06,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704558746] [2021-10-11 02:22:06,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:06,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:06,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:06,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,789 INFO L87 Difference]: Start difference. First operand 339 states and 535 transitions. Second operand 3 states. [2021-10-11 02:22:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:06,957 INFO L93 Difference]: Finished difference Result 678 states and 1070 transitions. [2021-10-11 02:22:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:06,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2021-10-11 02:22:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:06,960 INFO L225 Difference]: With dead ends: 678 [2021-10-11 02:22:06,960 INFO L226 Difference]: Without dead ends: 341 [2021-10-11 02:22:06,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-11 02:22:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2021-10-11 02:22:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2021-10-11 02:22:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 529 transitions. [2021-10-11 02:22:06,977 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 529 transitions. Word has length 96 [2021-10-11 02:22:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:06,978 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 529 transitions. [2021-10-11 02:22:06,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 529 transitions. [2021-10-11 02:22:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-11 02:22:06,979 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:06,980 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:06,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:22:06,982 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash -643941794, now seen corresponding path program 1 times [2021-10-11 02:22:06,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:06,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305151980] [2021-10-11 02:22:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:22:07,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:22:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:22:07,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:22:07,123 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:22:07,123 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:22:07,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:22:07,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:07 BoogieIcfgContainer [2021-10-11 02:22:07,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:07,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:07,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:07,250 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:07,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:02" (3/4) ... [2021-10-11 02:22:07,252 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:22:07,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5179aac8-61cf-46e7-a4d8-92ae58a2233c/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:07,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:07,401 INFO L168 Benchmark]: Toolchain (without parser) took 6770.24 ms. Allocated memory was 83.9 MB in the beginning and 195.0 MB in the end (delta: 111.1 MB). Free memory was 53.4 MB in the beginning and 159.8 MB in the end (delta: -106.4 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,402 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:07,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.37 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 77.7 MB in the end (delta: -24.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.93 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 75.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,406 INFO L168 Benchmark]: Boogie Preprocessor took 55.25 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,406 INFO L168 Benchmark]: RCFGBuilder took 1260.22 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 65.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,407 INFO L168 Benchmark]: TraceAbstraction took 4774.60 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 65.2 MB in the beginning and 48.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,407 INFO L168 Benchmark]: Witness Printer took 149.59 ms. Allocated memory was 161.5 MB in the beginning and 195.0 MB in the end (delta: 33.6 MB). Free memory was 48.0 MB in the beginning and 159.8 MB in the end (delta: -111.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:07,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 434.37 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 53.4 MB in the beginning and 77.7 MB in the end (delta: -24.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.93 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 75.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.25 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1260.22 ms. Allocated memory is still 104.9 MB. Free memory was 72.9 MB in the beginning and 65.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4774.60 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 65.2 MB in the beginning and 48.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 16.1 GB. * Witness Printer took 149.59 ms. Allocated memory was 161.5 MB in the beginning and 195.0 MB in the end (delta: 33.6 MB). Free memory was 48.0 MB in the beginning and 159.8 MB in the end (delta: -111.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 613]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L618] int s ; [L619] int tmp ; [L623] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND TRUE \read(s__hit) [L292] s__state = 8656 [L296] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] tmp___9 = __VERIFIER_nondet_int() [L492] COND FALSE !(! tmp___9) [L496] ret = __VERIFIER_nondet_int() [L497] COND TRUE blastFlag == 2 [L498] blastFlag = 3 [L500] COND FALSE !(ret <= 0) [L503] s__state = 8672 [L504] s__init_num = 0 [L505] tmp___10 = __VERIFIER_nondet_int() [L506] COND FALSE !(! tmp___10) [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND FALSE !(blastFlag == 4) [L517] COND TRUE blastFlag == 3 [L613] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1274 SDtfs, 1579 SDslu, 168 SDs, 0 SdLazy, 1291 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 46 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1224 NumberOfCodeBlocks, 1224 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1101 ConstructedInterpolants, 0 QuantifiedInterpolants, 156725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 603/603 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 incorrect! Received shutdown request...