./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8 --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 4b95be694d204445e232ebb694a8a2cbedfef2f3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8 --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 4b95be694d204445e232ebb694a8a2cbedfef2f3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:26:11,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:26:11,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:26:12,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:26:12,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:26:12,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:26:12,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:26:12,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:26:12,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:26:12,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:26:12,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:26:12,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:26:12,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:26:12,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:26:12,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:26:12,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:26:12,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:26:12,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:26:12,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:26:12,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:26:12,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:26:12,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:26:12,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:26:12,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:26:12,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:26:12,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:26:12,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:26:12,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:26:12,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:26:12,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:26:12,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:26:12,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:26:12,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:26:12,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:26:12,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:26:12,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:26:12,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:26:12,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:26:12,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:26:12,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:26:12,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:26:12,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:26:12,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:26:12,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:26:12,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:26:12,169 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:26:12,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:26:12,170 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:26:12,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:26:12,170 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:26:12,170 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:26:12,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:26:12,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:26:12,179 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:26:12,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:26:12,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:26:12,180 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:26:12,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:26:12,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:26:12,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:26:12,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:26:12,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:26:12,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:26:12,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:26:12,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:26:12,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:26:12,183 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:26:12,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:26:12,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:26:12,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:26:12,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:26:12,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:26:12,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:12,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:26:12,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:26:12,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:26:12,187 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:26:12,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:26:12,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:26:12,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:26:12,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:26:12,188 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b95be694d204445e232ebb694a8a2cbedfef2f3 [2021-10-13 07:26:12,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:26:12,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:26:12,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:26:12,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:26:12,488 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:26:12,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-13 07:26:12,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/58b915ecc/8d8b784c0ed742f0adfafbda4cd679ab/FLAGdeebebc2c [2021-10-13 07:26:13,175 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:26:13,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-13 07:26:13,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/58b915ecc/8d8b784c0ed742f0adfafbda4cd679ab/FLAGdeebebc2c [2021-10-13 07:26:13,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/58b915ecc/8d8b784c0ed742f0adfafbda4cd679ab [2021-10-13 07:26:13,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:26:13,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:26:13,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:13,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:26:13,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:26:13,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:13,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b489fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13, skipping insertion in model container [2021-10-13 07:26:13,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:13,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:26:13,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:26:13,837 WARN L228 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[47950,47963] [2021-10-13 07:26:13,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:13,855 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:26:13,943 WARN L228 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[47950,47963] [2021-10-13 07:26:13,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:13,967 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:26:13,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13 WrapperNode [2021-10-13 07:26:13,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:13,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:13,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:26:13,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:26:13,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:14,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:26:14,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:26:14,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:26:14,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:26:14,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:26:14,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:26:14,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:26:14,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (1/1) ... [2021-10-13 07:26:14,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:14,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:26:14,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:26:14,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:26:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:26:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:26:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:26:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:26:14,336 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:26:15,070 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-13 07:26:15,070 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-13 07:26:15,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:26:15,542 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:26:15,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:15 BoogieIcfgContainer [2021-10-13 07:26:15,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:26:15,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:26:15,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:26:15,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:26:15,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:26:13" (1/3) ... [2021-10-13 07:26:15,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:15, skipping insertion in model container [2021-10-13 07:26:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:13" (2/3) ... [2021-10-13 07:26:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:15, skipping insertion in model container [2021-10-13 07:26:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:15" (3/3) ... [2021-10-13 07:26:15,555 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2021-10-13 07:26:15,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:26:15,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:26:15,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:26:15,645 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:26:15,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:26:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.7777777777777777) internal successors, (192), 109 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 07:26:15,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:15,685 INFO L512 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] [2021-10-13 07:26:15,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:15,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1543272047, now seen corresponding path program 1 times [2021-10-13 07:26:15,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:15,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482836999] [2021-10-13 07:26:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:15,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:16,050 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:16,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482836999] [2021-10-13 07:26:16,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482836999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:16,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:16,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:26:16,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249469025] [2021-10-13 07:26:16,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:16,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:16,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:16,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:16,083 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.7777777777777777) internal successors, (192), 109 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:16,330 INFO L93 Difference]: Finished difference Result 239 states and 416 transitions. [2021-10-13 07:26:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 07:26:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:16,348 INFO L225 Difference]: With dead ends: 239 [2021-10-13 07:26:16,349 INFO L226 Difference]: Without dead ends: 125 [2021-10-13 07:26:16,353 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-13 07:26:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-13 07:26:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 122 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 182 transitions. [2021-10-13 07:26:16,415 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 182 transitions. Word has length 39 [2021-10-13 07:26:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:16,416 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 182 transitions. [2021-10-13 07:26:16,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 182 transitions. [2021-10-13 07:26:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 07:26:16,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:16,420 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-10-13 07:26:16,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:26:16,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash 239308573, now seen corresponding path program 1 times [2021-10-13 07:26:16,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:16,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467145849] [2021-10-13 07:26:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:16,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:16,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:16,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467145849] [2021-10-13 07:26:16,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467145849] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:16,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:16,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:16,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134624353] [2021-10-13 07:26:16,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:16,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:16,516 INFO L87 Difference]: Start difference. First operand 123 states and 182 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:16,671 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2021-10-13 07:26:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:16,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-13 07:26:16,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:16,680 INFO L225 Difference]: With dead ends: 265 [2021-10-13 07:26:16,680 INFO L226 Difference]: Without dead ends: 144 [2021-10-13 07:26:16,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-13 07:26:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-10-13 07:26:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.446808510638298) internal successors, (204), 141 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 204 transitions. [2021-10-13 07:26:16,714 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 204 transitions. Word has length 53 [2021-10-13 07:26:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:16,714 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 204 transitions. [2021-10-13 07:26:16,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 204 transitions. [2021-10-13 07:26:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-13 07:26:16,730 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:16,732 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2021-10-13 07:26:16,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:26:16,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:16,743 INFO L82 PathProgramCache]: Analyzing trace with hash 454710246, now seen corresponding path program 1 times [2021-10-13 07:26:16,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:16,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161436639] [2021-10-13 07:26:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:16,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 07:26:16,891 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:16,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161436639] [2021-10-13 07:26:16,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161436639] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:16,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:16,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:26:16,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203041264] [2021-10-13 07:26:16,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:16,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:16,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:16,894 INFO L87 Difference]: Start difference. First operand 142 states and 204 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:17,156 INFO L93 Difference]: Finished difference Result 356 states and 536 transitions. [2021-10-13 07:26:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:26:17,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-13 07:26:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:17,161 INFO L225 Difference]: With dead ends: 356 [2021-10-13 07:26:17,161 INFO L226 Difference]: Without dead ends: 216 [2021-10-13 07:26:17,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-13 07:26:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2021-10-13 07:26:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.3819095477386936) internal successors, (275), 199 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2021-10-13 07:26:17,203 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 70 [2021-10-13 07:26:17,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:17,205 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2021-10-13 07:26:17,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2021-10-13 07:26:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-13 07:26:17,214 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:17,214 INFO L512 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:17,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:26:17,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:17,216 INFO L82 PathProgramCache]: Analyzing trace with hash 490809813, now seen corresponding path program 1 times [2021-10-13 07:26:17,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:17,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258817508] [2021-10-13 07:26:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:17,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 07:26:17,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:17,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258817508] [2021-10-13 07:26:17,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258817508] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:17,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:17,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:17,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727204200] [2021-10-13 07:26:17,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:17,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:17,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:17,329 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:17,476 INFO L93 Difference]: Finished difference Result 413 states and 572 transitions. [2021-10-13 07:26:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:17,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-10-13 07:26:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:17,480 INFO L225 Difference]: With dead ends: 413 [2021-10-13 07:26:17,480 INFO L226 Difference]: Without dead ends: 215 [2021-10-13 07:26:17,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-13 07:26:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-10-13 07:26:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.3726415094339623) internal successors, (291), 212 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 291 transitions. [2021-10-13 07:26:17,500 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 291 transitions. Word has length 79 [2021-10-13 07:26:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:17,504 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 291 transitions. [2021-10-13 07:26:17,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 291 transitions. [2021-10-13 07:26:17,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-13 07:26:17,507 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:17,508 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:17,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:26:17,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:17,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1108501349, now seen corresponding path program 1 times [2021-10-13 07:26:17,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330600502] [2021-10-13 07:26:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:17,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-13 07:26:17,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330600502] [2021-10-13 07:26:17,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330600502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:17,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:17,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:17,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312632096] [2021-10-13 07:26:17,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:17,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:17,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:17,676 INFO L87 Difference]: Start difference. First operand 213 states and 291 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:17,861 INFO L93 Difference]: Finished difference Result 492 states and 686 transitions. [2021-10-13 07:26:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:17,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-10-13 07:26:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:17,865 INFO L225 Difference]: With dead ends: 492 [2021-10-13 07:26:17,865 INFO L226 Difference]: Without dead ends: 278 [2021-10-13 07:26:17,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-13 07:26:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 274. [2021-10-13 07:26:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.3919413919413919) internal successors, (380), 273 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2021-10-13 07:26:17,880 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 90 [2021-10-13 07:26:17,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:17,880 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2021-10-13 07:26:17,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:17,881 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2021-10-13 07:26:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-13 07:26:17,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:17,883 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:17,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:26:17,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:17,884 INFO L82 PathProgramCache]: Analyzing trace with hash 34168252, now seen corresponding path program 1 times [2021-10-13 07:26:17,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:17,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853007294] [2021-10-13 07:26:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:17,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-13 07:26:17,964 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:17,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853007294] [2021-10-13 07:26:17,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853007294] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:17,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:17,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:17,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141947645] [2021-10-13 07:26:17,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:17,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:17,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:17,967 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:18,118 INFO L93 Difference]: Finished difference Result 579 states and 813 transitions. [2021-10-13 07:26:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-10-13 07:26:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:18,122 INFO L225 Difference]: With dead ends: 579 [2021-10-13 07:26:18,122 INFO L226 Difference]: Without dead ends: 307 [2021-10-13 07:26:18,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-10-13 07:26:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 297. [2021-10-13 07:26:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.3716216216216217) internal successors, (406), 296 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 406 transitions. [2021-10-13 07:26:18,135 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 406 transitions. Word has length 90 [2021-10-13 07:26:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:18,136 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 406 transitions. [2021-10-13 07:26:18,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 406 transitions. [2021-10-13 07:26:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-10-13 07:26:18,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:18,138 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:18,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:26:18,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:18,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:18,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1218901684, now seen corresponding path program 1 times [2021-10-13 07:26:18,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:18,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431986706] [2021-10-13 07:26:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:18,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-13 07:26:18,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:18,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431986706] [2021-10-13 07:26:18,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431986706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:18,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:18,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:18,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454941650] [2021-10-13 07:26:18,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:18,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,208 INFO L87 Difference]: Start difference. First operand 297 states and 406 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:18,357 INFO L93 Difference]: Finished difference Result 625 states and 866 transitions. [2021-10-13 07:26:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:18,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-10-13 07:26:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:18,361 INFO L225 Difference]: With dead ends: 625 [2021-10-13 07:26:18,361 INFO L226 Difference]: Without dead ends: 330 [2021-10-13 07:26:18,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-10-13 07:26:18,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 322. [2021-10-13 07:26:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 434 transitions. [2021-10-13 07:26:18,397 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 434 transitions. Word has length 114 [2021-10-13 07:26:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:18,397 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 434 transitions. [2021-10-13 07:26:18,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 434 transitions. [2021-10-13 07:26:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-13 07:26:18,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:18,400 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:18,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:26:18,400 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:18,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:18,401 INFO L82 PathProgramCache]: Analyzing trace with hash 518397532, now seen corresponding path program 1 times [2021-10-13 07:26:18,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:18,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105392262] [2021-10-13 07:26:18,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:18,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-13 07:26:18,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:18,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105392262] [2021-10-13 07:26:18,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105392262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:18,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:18,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:18,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498425726] [2021-10-13 07:26:18,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:18,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:18,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:18,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,465 INFO L87 Difference]: Start difference. First operand 322 states and 434 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:18,627 INFO L93 Difference]: Finished difference Result 649 states and 876 transitions. [2021-10-13 07:26:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:18,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-10-13 07:26:18,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:18,630 INFO L225 Difference]: With dead ends: 649 [2021-10-13 07:26:18,631 INFO L226 Difference]: Without dead ends: 328 [2021-10-13 07:26:18,631 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-10-13 07:26:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 325. [2021-10-13 07:26:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.345679012345679) internal successors, (436), 324 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 436 transitions. [2021-10-13 07:26:18,643 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 436 transitions. Word has length 128 [2021-10-13 07:26:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:18,644 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 436 transitions. [2021-10-13 07:26:18,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 436 transitions. [2021-10-13 07:26:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-13 07:26:18,646 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:18,646 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:18,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:26:18,646 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:18,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:18,647 INFO L82 PathProgramCache]: Analyzing trace with hash 246184928, now seen corresponding path program 1 times [2021-10-13 07:26:18,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:18,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892161518] [2021-10-13 07:26:18,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:18,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-13 07:26:18,707 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:18,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892161518] [2021-10-13 07:26:18,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892161518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:18,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:18,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:18,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570932099] [2021-10-13 07:26:18,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:18,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,710 INFO L87 Difference]: Start difference. First operand 325 states and 436 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:18,842 INFO L93 Difference]: Finished difference Result 677 states and 919 transitions. [2021-10-13 07:26:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-10-13 07:26:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:18,845 INFO L225 Difference]: With dead ends: 677 [2021-10-13 07:26:18,846 INFO L226 Difference]: Without dead ends: 354 [2021-10-13 07:26:18,847 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-13 07:26:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 352. [2021-10-13 07:26:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 351 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 466 transitions. [2021-10-13 07:26:18,861 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 466 transitions. Word has length 136 [2021-10-13 07:26:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:18,861 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 466 transitions. [2021-10-13 07:26:18,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 466 transitions. [2021-10-13 07:26:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-13 07:26:18,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:18,865 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:18,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:26:18,865 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:18,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:18,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1620975244, now seen corresponding path program 1 times [2021-10-13 07:26:18,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:18,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596738888] [2021-10-13 07:26:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:18,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-13 07:26:18,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:18,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596738888] [2021-10-13 07:26:18,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596738888] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:18,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:18,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:26:18,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436110671] [2021-10-13 07:26:18,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:18,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:18,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:18,931 INFO L87 Difference]: Start difference. First operand 352 states and 466 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:19,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:19,067 INFO L93 Difference]: Finished difference Result 731 states and 981 transitions. [2021-10-13 07:26:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:19,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-10-13 07:26:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:19,071 INFO L225 Difference]: With dead ends: 731 [2021-10-13 07:26:19,071 INFO L226 Difference]: Without dead ends: 381 [2021-10-13 07:26:19,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-10-13 07:26:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-10-13 07:26:19,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.3105263157894738) internal successors, (498), 380 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 498 transitions. [2021-10-13 07:26:19,087 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 498 transitions. Word has length 141 [2021-10-13 07:26:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:19,088 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 498 transitions. [2021-10-13 07:26:19,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 498 transitions. [2021-10-13 07:26:19,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-13 07:26:19,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:19,091 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:19,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 07:26:19,091 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:19,092 INFO L82 PathProgramCache]: Analyzing trace with hash -327106601, now seen corresponding path program 1 times [2021-10-13 07:26:19,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:26:19,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102668499] [2021-10-13 07:26:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:19,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:26:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-13 07:26:19,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:26:19,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102668499] [2021-10-13 07:26:19,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102668499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:26:19,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290551706] [2021-10-13 07:26:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:19,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:26:19,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:26:19,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:26:19,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:26:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:19,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:26:19,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-13 07:26:19,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-10-13 07:26:20,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290551706] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:26:20,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [429197068] [2021-10-13 07:26:20,394 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-10-13 07:26:20,395 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:26:20,403 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:26:20,410 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:26:20,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:26:23,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:23,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:26:23,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:23,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:26:23,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:26:23,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:23,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:26:23,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-10-13 07:26:23,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:23,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:23,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,060 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 07:26:24,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 07:26:24,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,075 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:26:24,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,194 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 07:26:24,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 07:26:24,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,204 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:26:24,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:26:24,294 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 07:26:24,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 07:26:24,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:26:24,305 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 07:26:24,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:26:24,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:26:24,602 INFO L180 QuantifierPusher]: treesize reduction 18, result has 98.3 percent of original size [2021-10-13 07:26:24,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1071 [2021-10-13 07:26:24,647 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-10-13 07:26:24,648 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:1137, output treesize:1071 [2021-10-13 07:26:24,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:24,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:26:24,875 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_21| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:26:24,880 INFO L168 Benchmark]: Toolchain (without parser) took 11424.75 ms. Allocated memory was 119.5 MB in the beginning and 343.9 MB in the end (delta: 224.4 MB). Free memory was 83.8 MB in the beginning and 201.7 MB in the end (delta: -117.9 MB). Peak memory consumption was 204.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,880 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 58.9 MB in the beginning and 58.9 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:26:24,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.53 ms. Allocated memory is still 119.5 MB. Free memory was 83.6 MB in the beginning and 90.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.93 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 87.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,882 INFO L168 Benchmark]: Boogie Preprocessor took 56.89 ms. Allocated memory is still 119.5 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,882 INFO L168 Benchmark]: RCFGBuilder took 1417.36 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 76.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,889 INFO L168 Benchmark]: TraceAbstraction took 9331.67 ms. Allocated memory was 119.5 MB in the beginning and 343.9 MB in the end (delta: 224.4 MB). Free memory was 76.0 MB in the beginning and 201.7 MB in the end (delta: -125.7 MB). Peak memory consumption was 195.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:24,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 58.9 MB in the beginning and 58.9 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.53 ms. Allocated memory is still 119.5 MB. Free memory was 83.6 MB in the beginning and 90.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.93 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 87.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.89 ms. Allocated memory is still 119.5 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1417.36 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 76.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9331.67 ms. Allocated memory was 119.5 MB in the beginning and 343.9 MB in the end (delta: 224.4 MB). Free memory was 76.0 MB in the beginning and 201.7 MB in the end (delta: -125.7 MB). Peak memory consumption was 195.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_21| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_21|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:26:24,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:26:27,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:26:27,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:26:27,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:26:27,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:26:27,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:26:27,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:26:27,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:26:27,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:26:27,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:26:27,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:26:27,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:26:27,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:26:27,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:26:27,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:26:27,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:26:27,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:26:27,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:26:27,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:26:27,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:26:27,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:26:27,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:26:27,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:26:27,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:26:27,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:26:27,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:26:27,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:26:27,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:26:27,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:26:27,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:26:27,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:26:27,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:26:27,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:26:27,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:26:27,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:26:27,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:26:27,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:26:27,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:26:27,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:26:27,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:26:27,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:26:27,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:26:27,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:26:27,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:26:27,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:26:27,840 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:26:27,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:26:27,840 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:26:27,840 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:26:27,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:26:27,841 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:26:27,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:26:27,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:26:27,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:26:27,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:26:27,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:26:27,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:26:27,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:26:27,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:26:27,846 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:26:27,846 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:26:27,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:26:27,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:26:27,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:26:27,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:26:27,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:26:27,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:26:27,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:26:27,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:27,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:26:27,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:26:27,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:26:27,849 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:26:27,849 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:27,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:26:27,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:26:27,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:26:27,851 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b95be694d204445e232ebb694a8a2cbedfef2f3 [2021-10-13 07:26:28,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:26:28,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:26:28,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:26:28,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:26:28,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:26:28,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-13 07:26:28,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/1c9830fda/f79e4db2846d42768a5719de2efa47ed/FLAGab2deb041 [2021-10-13 07:26:29,122 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:26:29,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-10-13 07:26:29,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/1c9830fda/f79e4db2846d42768a5719de2efa47ed/FLAGab2deb041 [2021-10-13 07:26:29,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/data/1c9830fda/f79e4db2846d42768a5719de2efa47ed [2021-10-13 07:26:29,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:26:29,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:26:29,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:29,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:26:29,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:26:29,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:29,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e0cf86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29, skipping insertion in model container [2021-10-13 07:26:29,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:29,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:26:29,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:26:29,752 WARN L228 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[47950,47963] [2021-10-13 07:26:29,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:29,800 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:26:29,891 WARN L228 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_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c[47950,47963] [2021-10-13 07:26:29,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:26:29,910 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:26:29,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29 WrapperNode [2021-10-13 07:26:29,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:26:29,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:29,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:26:29,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:26:29,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:29,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:29,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:26:29,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:26:29,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:26:29,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:26:30,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:26:30,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:26:30,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:26:30,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:26:30,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (1/1) ... [2021-10-13 07:26:30,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:26:30,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:26:30,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:26:30,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:26:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:26:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:26:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:26:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:26:30,349 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:26:31,125 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-13 07:26:31,125 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-13 07:26:31,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:26:31,136 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:26:31,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:31 BoogieIcfgContainer [2021-10-13 07:26:31,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:26:31,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:26:31,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:26:31,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:26:31,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:26:29" (1/3) ... [2021-10-13 07:26:31,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dca22ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:31, skipping insertion in model container [2021-10-13 07:26:31,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:29" (2/3) ... [2021-10-13 07:26:31,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dca22ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:31, skipping insertion in model container [2021-10-13 07:26:31,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:31" (3/3) ... [2021-10-13 07:26:31,149 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2021-10-13 07:26:31,155 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:26:31,155 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:26:31,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:26:31,218 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:26:31,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:26:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-13 07:26:31,254 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:31,255 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:31,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:31,263 INFO L82 PathProgramCache]: Analyzing trace with hash -443745208, now seen corresponding path program 1 times [2021-10-13 07:26:31,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:31,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474597263] [2021-10-13 07:26:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:31,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:31,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:31,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:31,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:26:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:31,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:26:31,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:31,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:31,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:31,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474597263] [2021-10-13 07:26:31,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474597263] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:31,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:31,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:31,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504450718] [2021-10-13 07:26:31,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:31,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:32,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:32,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:32,015 INFO L87 Difference]: Start difference. First operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:32,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:32,296 INFO L93 Difference]: Finished difference Result 336 states and 582 transitions. [2021-10-13 07:26:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-13 07:26:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:32,313 INFO L225 Difference]: With dead ends: 336 [2021-10-13 07:26:32,313 INFO L226 Difference]: Without dead ends: 166 [2021-10-13 07:26:32,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-13 07:26:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2021-10-13 07:26:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5617283950617284) internal successors, (253), 162 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2021-10-13 07:26:32,372 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 44 [2021-10-13 07:26:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:32,373 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2021-10-13 07:26:32,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2021-10-13 07:26:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 07:26:32,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:32,378 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:32,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 07:26:32,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:32,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1030632600, now seen corresponding path program 1 times [2021-10-13 07:26:32,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:32,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716605959] [2021-10-13 07:26:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:32,595 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:32,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:32,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:32,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:26:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:32,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:32,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:33,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:33,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716605959] [2021-10-13 07:26:33,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716605959] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:33,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:33,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:33,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517880544] [2021-10-13 07:26:33,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:33,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:33,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:33,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:33,166 INFO L87 Difference]: Start difference. First operand 163 states and 253 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:33,371 INFO L93 Difference]: Finished difference Result 343 states and 538 transitions. [2021-10-13 07:26:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-13 07:26:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:33,376 INFO L225 Difference]: With dead ends: 343 [2021-10-13 07:26:33,376 INFO L226 Difference]: Without dead ends: 188 [2021-10-13 07:26:33,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-13 07:26:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2021-10-13 07:26:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.5245901639344261) internal successors, (279), 183 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 279 transitions. [2021-10-13 07:26:33,420 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 279 transitions. Word has length 60 [2021-10-13 07:26:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:33,421 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 279 transitions. [2021-10-13 07:26:33,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 279 transitions. [2021-10-13 07:26:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-13 07:26:33,427 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:33,427 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:33,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:33,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:33,640 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:33,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:33,641 INFO L82 PathProgramCache]: Analyzing trace with hash 18153750, now seen corresponding path program 1 times [2021-10-13 07:26:33,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:33,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730382144] [2021-10-13 07:26:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:33,643 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:33,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:33,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:26:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:33,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:33,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:34,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:34,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:34,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730382144] [2021-10-13 07:26:34,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730382144] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:34,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:34,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:26:34,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118633218] [2021-10-13 07:26:34,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:34,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:34,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:34,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:34,457 INFO L87 Difference]: Start difference. First operand 184 states and 279 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:34,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:34,847 INFO L93 Difference]: Finished difference Result 457 states and 722 transitions. [2021-10-13 07:26:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:26:34,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-10-13 07:26:34,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:34,855 INFO L225 Difference]: With dead ends: 457 [2021-10-13 07:26:34,859 INFO L226 Difference]: Without dead ends: 281 [2021-10-13 07:26:34,861 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-13 07:26:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2021-10-13 07:26:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 263 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:34,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 397 transitions. [2021-10-13 07:26:34,903 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 397 transitions. Word has length 81 [2021-10-13 07:26:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:34,906 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 397 transitions. [2021-10-13 07:26:34,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 397 transitions. [2021-10-13 07:26:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-13 07:26:34,918 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:34,922 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:34,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:35,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:35,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:35,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1510748766, now seen corresponding path program 1 times [2021-10-13 07:26:35,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:35,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803514137] [2021-10-13 07:26:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:35,149 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:35,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:35,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:26:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:35,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:35,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:35,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:35,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:35,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803514137] [2021-10-13 07:26:35,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803514137] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:35,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:35,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:35,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356593971] [2021-10-13 07:26:35,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:35,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:35,796 INFO L87 Difference]: Start difference. First operand 264 states and 397 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:35,971 INFO L93 Difference]: Finished difference Result 548 states and 831 transitions. [2021-10-13 07:26:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:35,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-10-13 07:26:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:35,975 INFO L225 Difference]: With dead ends: 548 [2021-10-13 07:26:35,975 INFO L226 Difference]: Without dead ends: 292 [2021-10-13 07:26:35,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-13 07:26:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 287. [2021-10-13 07:26:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.486013986013986) internal successors, (425), 286 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 425 transitions. [2021-10-13 07:26:36,024 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 425 transitions. Word has length 82 [2021-10-13 07:26:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:36,024 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 425 transitions. [2021-10-13 07:26:36,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 425 transitions. [2021-10-13 07:26:36,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-13 07:26:36,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:36,033 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:36,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:36,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:36,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:36,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:36,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1273577226, now seen corresponding path program 1 times [2021-10-13 07:26:36,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:36,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140508261] [2021-10-13 07:26:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:36,236 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:36,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:36,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:36,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:26:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:36,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:36,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:26:36,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:26:36,970 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:36,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140508261] [2021-10-13 07:26:36,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140508261] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:36,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:36,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:36,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418471581] [2021-10-13 07:26:36,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:36,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:36,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:36,973 INFO L87 Difference]: Start difference. First operand 287 states and 425 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:37,179 INFO L93 Difference]: Finished difference Result 605 states and 907 transitions. [2021-10-13 07:26:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:37,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-10-13 07:26:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:37,189 INFO L225 Difference]: With dead ends: 605 [2021-10-13 07:26:37,190 INFO L226 Difference]: Without dead ends: 326 [2021-10-13 07:26:37,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:37,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-10-13 07:26:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 312. [2021-10-13 07:26:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.4630225080385852) internal successors, (455), 311 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 455 transitions. [2021-10-13 07:26:37,211 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 455 transitions. Word has length 103 [2021-10-13 07:26:37,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:37,213 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 455 transitions. [2021-10-13 07:26:37,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 455 transitions. [2021-10-13 07:26:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-13 07:26:37,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:37,217 INFO L512 BasicCegarLoop]: trace histogram [4, 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, 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] [2021-10-13 07:26:37,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:37,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:37,435 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1830490624, now seen corresponding path program 1 times [2021-10-13 07:26:37,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:37,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415914469] [2021-10-13 07:26:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:37,437 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:37,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:37,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:37,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:26:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:37,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:37,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:38,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:26:38,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:38,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415914469] [2021-10-13 07:26:38,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415914469] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:38,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:38,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:26:38,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25476161] [2021-10-13 07:26:38,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:38,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:38,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:38,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:38,395 INFO L87 Difference]: Start difference. First operand 312 states and 455 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:38,607 INFO L93 Difference]: Finished difference Result 1214 states and 1773 transitions. [2021-10-13 07:26:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:26:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-13 07:26:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:38,615 INFO L225 Difference]: With dead ends: 1214 [2021-10-13 07:26:38,615 INFO L226 Difference]: Without dead ends: 910 [2021-10-13 07:26:38,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-13 07:26:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2021-10-13 07:26:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.4378437843784377) internal successors, (1307), 909 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1307 transitions. [2021-10-13 07:26:38,652 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1307 transitions. Word has length 122 [2021-10-13 07:26:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:38,653 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1307 transitions. [2021-10-13 07:26:38,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:38,653 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1307 transitions. [2021-10-13 07:26:38,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-13 07:26:38,656 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:38,657 INFO L512 BasicCegarLoop]: trace histogram [4, 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, 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] [2021-10-13 07:26:38,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:38,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:38,873 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:38,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:38,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1195862027, now seen corresponding path program 1 times [2021-10-13 07:26:38,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:38,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483545015] [2021-10-13 07:26:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:38,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:38,877 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:38,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:26:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:39,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:39,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-13 07:26:39,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-13 07:26:39,816 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:39,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483545015] [2021-10-13 07:26:39,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483545015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:39,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:39,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:39,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638885970] [2021-10-13 07:26:39,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:39,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:39,820 INFO L87 Difference]: Start difference. First operand 910 states and 1307 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:39,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:39,915 INFO L93 Difference]: Finished difference Result 1836 states and 2632 transitions. [2021-10-13 07:26:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-10-13 07:26:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:39,925 INFO L225 Difference]: With dead ends: 1836 [2021-10-13 07:26:39,926 INFO L226 Difference]: Without dead ends: 934 [2021-10-13 07:26:39,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:39,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-10-13 07:26:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2021-10-13 07:26:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 933 states have (on average 1.4319399785637728) internal successors, (1336), 933 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1336 transitions. [2021-10-13 07:26:39,976 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1336 transitions. Word has length 123 [2021-10-13 07:26:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:39,976 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1336 transitions. [2021-10-13 07:26:39,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1336 transitions. [2021-10-13 07:26:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-13 07:26:39,979 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:39,980 INFO L512 BasicCegarLoop]: trace histogram [4, 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, 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] [2021-10-13 07:26:39,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:40,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:40,194 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:40,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1077420553, now seen corresponding path program 1 times [2021-10-13 07:26:40,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:40,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322860031] [2021-10-13 07:26:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:40,196 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:40,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:40,197 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:40,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:26:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:40,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:40,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-13 07:26:40,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-13 07:26:41,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:41,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322860031] [2021-10-13 07:26:41,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322860031] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:41,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:41,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:41,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729468384] [2021-10-13 07:26:41,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:41,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:41,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:41,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:41,281 INFO L87 Difference]: Start difference. First operand 934 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:41,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:41,370 INFO L93 Difference]: Finished difference Result 1873 states and 2674 transitions. [2021-10-13 07:26:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:41,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-10-13 07:26:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:41,377 INFO L225 Difference]: With dead ends: 1873 [2021-10-13 07:26:41,377 INFO L226 Difference]: Without dead ends: 947 [2021-10-13 07:26:41,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2021-10-13 07:26:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2021-10-13 07:26:41,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.4260042283298098) internal successors, (1349), 946 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1349 transitions. [2021-10-13 07:26:41,415 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1349 transitions. Word has length 123 [2021-10-13 07:26:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:41,417 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1349 transitions. [2021-10-13 07:26:41,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:41,418 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1349 transitions. [2021-10-13 07:26:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-10-13 07:26:41,421 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:41,421 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-13 07:26:41,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:41,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:41,635 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1240056652, now seen corresponding path program 1 times [2021-10-13 07:26:41,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:41,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004992884] [2021-10-13 07:26:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:41,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:41,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:41,638 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:41,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:26:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:42,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:42,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 07:26:42,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 07:26:42,682 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:42,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004992884] [2021-10-13 07:26:42,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004992884] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:42,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:42,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:26:42,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282588842] [2021-10-13 07:26:42,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:42,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:42,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:42,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:42,685 INFO L87 Difference]: Start difference. First operand 947 states and 1349 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:42,769 INFO L93 Difference]: Finished difference Result 3680 states and 5237 transitions. [2021-10-13 07:26:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:26:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2021-10-13 07:26:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:42,792 INFO L225 Difference]: With dead ends: 3680 [2021-10-13 07:26:42,792 INFO L226 Difference]: Without dead ends: 2754 [2021-10-13 07:26:42,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:26:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-10-13 07:26:42,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 950. [2021-10-13 07:26:42,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 1.4246575342465753) internal successors, (1352), 949 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1352 transitions. [2021-10-13 07:26:42,851 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1352 transitions. Word has length 131 [2021-10-13 07:26:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:42,851 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 1352 transitions. [2021-10-13 07:26:42,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1352 transitions. [2021-10-13 07:26:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-10-13 07:26:42,854 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:42,855 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-13 07:26:42,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:43,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:43,068 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:43,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1126637942, now seen corresponding path program 1 times [2021-10-13 07:26:43,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:43,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435419516] [2021-10-13 07:26:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:43,069 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:43,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:43,072 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:43,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:26:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:43,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:26:43,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:26:43,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 07:26:44,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:44,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435419516] [2021-10-13 07:26:44,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435419516] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:44,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:44,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 07:26:44,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044628708] [2021-10-13 07:26:44,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:26:44,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:44,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:26:44,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:26:44,260 INFO L87 Difference]: Start difference. First operand 950 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:44,500 INFO L93 Difference]: Finished difference Result 3047 states and 4286 transitions. [2021-10-13 07:26:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:26:44,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2021-10-13 07:26:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:44,516 INFO L225 Difference]: With dead ends: 3047 [2021-10-13 07:26:44,516 INFO L226 Difference]: Without dead ends: 2118 [2021-10-13 07:26:44,519 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 81.3ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:26:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2021-10-13 07:26:44,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1231. [2021-10-13 07:26:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1230 states have (on average 1.4065040650406504) internal successors, (1730), 1230 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1730 transitions. [2021-10-13 07:26:44,603 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1730 transitions. Word has length 131 [2021-10-13 07:26:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:44,604 INFO L470 AbstractCegarLoop]: Abstraction has 1231 states and 1730 transitions. [2021-10-13 07:26:44,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1730 transitions. [2021-10-13 07:26:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-13 07:26:44,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:44,608 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-13 07:26:44,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:44,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:44,824 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:44,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:44,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2047407937, now seen corresponding path program 1 times [2021-10-13 07:26:44,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:44,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224486160] [2021-10-13 07:26:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:44,825 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:44,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:44,827 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:44,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:26:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:45,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:45,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 07:26:45,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-13 07:26:46,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:46,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224486160] [2021-10-13 07:26:46,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224486160] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:46,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:46,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:46,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367217404] [2021-10-13 07:26:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:46,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:46,018 INFO L87 Difference]: Start difference. First operand 1231 states and 1730 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:46,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:46,270 INFO L93 Difference]: Finished difference Result 2561 states and 3664 transitions. [2021-10-13 07:26:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-10-13 07:26:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:46,280 INFO L225 Difference]: With dead ends: 2561 [2021-10-13 07:26:46,280 INFO L226 Difference]: Without dead ends: 1375 [2021-10-13 07:26:46,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2021-10-13 07:26:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1339. [2021-10-13 07:26:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 1.3886397608370702) internal successors, (1858), 1338 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1858 transitions. [2021-10-13 07:26:46,355 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1858 transitions. Word has length 132 [2021-10-13 07:26:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:46,356 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1858 transitions. [2021-10-13 07:26:46,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1858 transitions. [2021-10-13 07:26:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-13 07:26:46,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:46,361 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-13 07:26:46,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:46,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:46,576 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:46,577 INFO L82 PathProgramCache]: Analyzing trace with hash 2082237169, now seen corresponding path program 1 times [2021-10-13 07:26:46,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:46,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653382344] [2021-10-13 07:26:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:46,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:46,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:46,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:46,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:26:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:47,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:47,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:47,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:48,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:48,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653382344] [2021-10-13 07:26:48,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653382344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:48,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:48,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:48,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641848596] [2021-10-13 07:26:48,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:48,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:48,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:48,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:48,121 INFO L87 Difference]: Start difference. First operand 1339 states and 1858 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:48,340 INFO L93 Difference]: Finished difference Result 2757 states and 3886 transitions. [2021-10-13 07:26:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:48,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-10-13 07:26:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:48,351 INFO L225 Difference]: With dead ends: 2757 [2021-10-13 07:26:48,351 INFO L226 Difference]: Without dead ends: 1463 [2021-10-13 07:26:48,354 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-10-13 07:26:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1455. [2021-10-13 07:26:48,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.3713892709766162) internal successors, (1994), 1454 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1994 transitions. [2021-10-13 07:26:48,451 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1994 transitions. Word has length 155 [2021-10-13 07:26:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:48,451 INFO L470 AbstractCegarLoop]: Abstraction has 1455 states and 1994 transitions. [2021-10-13 07:26:48,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1994 transitions. [2021-10-13 07:26:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-10-13 07:26:48,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:48,456 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-10-13 07:26:48,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:48,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:48,670 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:48,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash 78022700, now seen corresponding path program 1 times [2021-10-13 07:26:48,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:48,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156790524] [2021-10-13 07:26:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:48,672 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:48,673 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:48,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:26:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:49,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:49,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:49,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:50,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:50,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156790524] [2021-10-13 07:26:50,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156790524] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:50,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:50,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:50,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237802961] [2021-10-13 07:26:50,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:50,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:50,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:50,060 INFO L87 Difference]: Start difference. First operand 1455 states and 1994 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:50,271 INFO L93 Difference]: Finished difference Result 2989 states and 4166 transitions. [2021-10-13 07:26:50,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:50,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-10-13 07:26:50,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:50,281 INFO L225 Difference]: With dead ends: 2989 [2021-10-13 07:26:50,282 INFO L226 Difference]: Without dead ends: 1579 [2021-10-13 07:26:50,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-10-13 07:26:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1579. [2021-10-13 07:26:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 1.3548795944233207) internal successors, (2138), 1578 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2138 transitions. [2021-10-13 07:26:50,372 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2138 transitions. Word has length 161 [2021-10-13 07:26:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:50,372 INFO L470 AbstractCegarLoop]: Abstraction has 1579 states and 2138 transitions. [2021-10-13 07:26:50,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2138 transitions. [2021-10-13 07:26:50,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-10-13 07:26:50,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:50,377 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 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] [2021-10-13 07:26:50,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:50,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:50,590 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:50,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:50,591 INFO L82 PathProgramCache]: Analyzing trace with hash -212433663, now seen corresponding path program 1 times [2021-10-13 07:26:50,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:50,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536079680] [2021-10-13 07:26:50,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:50,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:50,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:50,593 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:50,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 07:26:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:51,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:26:51,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:51,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-10-13 07:26:52,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:52,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536079680] [2021-10-13 07:26:52,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536079680] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:26:52,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1055694553] [2021-10-13 07:26:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:52,252 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:26:52,259 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:26:52,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 07:26:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:53,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:53,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-10-13 07:26:53,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-10-13 07:26:54,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1055694553] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:54,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:26:54,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 6 [2021-10-13 07:26:54,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942577991] [2021-10-13 07:26:54,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:26:54,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:54,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:26:54,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:26:54,398 INFO L87 Difference]: Start difference. First operand 1579 states and 2138 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:54,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:54,673 INFO L93 Difference]: Finished difference Result 3485 states and 4752 transitions. [2021-10-13 07:26:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:26:54,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-10-13 07:26:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:54,691 INFO L225 Difference]: With dead ends: 3485 [2021-10-13 07:26:54,691 INFO L226 Difference]: Without dead ends: 2339 [2021-10-13 07:26:54,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:26:54,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2021-10-13 07:26:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2339. [2021-10-13 07:26:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 1.3545765611633875) internal successors, (3167), 2338 states have internal predecessors, (3167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3167 transitions. [2021-10-13 07:26:54,833 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3167 transitions. Word has length 188 [2021-10-13 07:26:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:54,833 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3167 transitions. [2021-10-13 07:26:54,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:54,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3167 transitions. [2021-10-13 07:26:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-13 07:26:54,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:54,844 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 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, 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] [2021-10-13 07:26:54,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:55,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:55,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:55,260 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:55,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:55,261 INFO L82 PathProgramCache]: Analyzing trace with hash 321583963, now seen corresponding path program 1 times [2021-10-13 07:26:55,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:55,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038814157] [2021-10-13 07:26:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:55,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:55,262 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:55,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 07:26:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:56,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:56,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-10-13 07:26:56,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-10-13 07:26:57,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:57,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038814157] [2021-10-13 07:26:57,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038814157] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:26:57,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:26:57,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:26:57,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598681934] [2021-10-13 07:26:57,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:57,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:26:57,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:57,488 INFO L87 Difference]: Start difference. First operand 2339 states and 3167 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:57,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:57,701 INFO L93 Difference]: Finished difference Result 4628 states and 6288 transitions. [2021-10-13 07:26:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:57,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2021-10-13 07:26:57,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:57,720 INFO L225 Difference]: With dead ends: 4628 [2021-10-13 07:26:57,720 INFO L226 Difference]: Without dead ends: 2722 [2021-10-13 07:26:57,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:26:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-10-13 07:26:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2722. [2021-10-13 07:26:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2721 states have (on average 1.3509739066519661) internal successors, (3676), 2721 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3676 transitions. [2021-10-13 07:26:57,864 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3676 transitions. Word has length 261 [2021-10-13 07:26:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:57,864 INFO L470 AbstractCegarLoop]: Abstraction has 2722 states and 3676 transitions. [2021-10-13 07:26:57,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:26:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3676 transitions. [2021-10-13 07:26:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-13 07:26:57,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:57,875 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 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, 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] [2021-10-13 07:26:57,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:58,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:26:58,091 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:26:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:58,092 INFO L82 PathProgramCache]: Analyzing trace with hash 848978013, now seen corresponding path program 1 times [2021-10-13 07:26:58,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:58,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204145849] [2021-10-13 07:26:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:26:58,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:58,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:58,094 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:58,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 07:26:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:26:59,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:26:59,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-13 07:26:59,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-10-13 07:27:00,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:00,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204145849] [2021-10-13 07:27:00,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204145849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:00,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:00,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:00,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28676772] [2021-10-13 07:27:00,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:00,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:00,540 INFO L87 Difference]: Start difference. First operand 2722 states and 3676 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:00,684 INFO L93 Difference]: Finished difference Result 5045 states and 6819 transitions. [2021-10-13 07:27:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:00,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2021-10-13 07:27:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:00,703 INFO L225 Difference]: With dead ends: 5045 [2021-10-13 07:27:00,703 INFO L226 Difference]: Without dead ends: 2756 [2021-10-13 07:27:00,708 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2021-10-13 07:27:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2756. [2021-10-13 07:27:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2755 states have (on average 1.3491833030852995) internal successors, (3717), 2755 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3717 transitions. [2021-10-13 07:27:00,824 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3717 transitions. Word has length 261 [2021-10-13 07:27:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:00,825 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 3717 transitions. [2021-10-13 07:27:00,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3717 transitions. [2021-10-13 07:27:00,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-10-13 07:27:00,849 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:00,849 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:00,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:01,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:01,063 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash -168204123, now seen corresponding path program 1 times [2021-10-13 07:27:01,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:01,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437216161] [2021-10-13 07:27:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:01,064 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:01,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:01,066 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:01,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 07:27:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:02,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:02,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2021-10-13 07:27:03,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2021-10-13 07:27:03,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:03,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437216161] [2021-10-13 07:27:03,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437216161] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:03,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:03,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:03,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444212777] [2021-10-13 07:27:03,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:03,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:03,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:03,709 INFO L87 Difference]: Start difference. First operand 2756 states and 3717 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:03,983 INFO L93 Difference]: Finished difference Result 5609 states and 7621 transitions. [2021-10-13 07:27:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:03,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 292 [2021-10-13 07:27:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:04,004 INFO L225 Difference]: With dead ends: 5609 [2021-10-13 07:27:04,004 INFO L226 Difference]: Without dead ends: 2898 [2021-10-13 07:27:04,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-10-13 07:27:04,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2876. [2021-10-13 07:27:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 1.3450434782608696) internal successors, (3867), 2875 states have internal predecessors, (3867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3867 transitions. [2021-10-13 07:27:04,156 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3867 transitions. Word has length 292 [2021-10-13 07:27:04,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:04,157 INFO L470 AbstractCegarLoop]: Abstraction has 2876 states and 3867 transitions. [2021-10-13 07:27:04,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3867 transitions. [2021-10-13 07:27:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-10-13 07:27:04,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:04,170 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:04,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:04,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:04,387 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:04,388 INFO L82 PathProgramCache]: Analyzing trace with hash 994023995, now seen corresponding path program 1 times [2021-10-13 07:27:04,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:04,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543401975] [2021-10-13 07:27:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:04,389 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:04,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:04,389 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:04,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 07:27:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:05,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:05,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:06,585 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-13 07:27:06,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-13 07:27:07,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:07,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543401975] [2021-10-13 07:27:07,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543401975] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:07,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:07,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:07,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445010990] [2021-10-13 07:27:07,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:07,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:07,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:07,243 INFO L87 Difference]: Start difference. First operand 2876 states and 3867 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:07,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:07,474 INFO L93 Difference]: Finished difference Result 5932 states and 8088 transitions. [2021-10-13 07:27:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:07,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2021-10-13 07:27:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:07,494 INFO L225 Difference]: With dead ends: 5932 [2021-10-13 07:27:07,494 INFO L226 Difference]: Without dead ends: 3101 [2021-10-13 07:27:07,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2021-10-13 07:27:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3080. [2021-10-13 07:27:07,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 1.331925949983761) internal successors, (4101), 3079 states have internal predecessors, (4101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4101 transitions. [2021-10-13 07:27:07,657 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4101 transitions. Word has length 294 [2021-10-13 07:27:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:07,658 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 4101 transitions. [2021-10-13 07:27:07,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:07,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4101 transitions. [2021-10-13 07:27:07,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-10-13 07:27:07,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:07,672 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 3, 3, 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, 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] [2021-10-13 07:27:07,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:07,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:07,891 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:07,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:07,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1500458674, now seen corresponding path program 1 times [2021-10-13 07:27:07,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:07,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859686646] [2021-10-13 07:27:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:07,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:07,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:07,895 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:07,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 07:27:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:09,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:09,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-13 07:27:10,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-13 07:27:11,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:11,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859686646] [2021-10-13 07:27:11,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859686646] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:11,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:11,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:11,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382919878] [2021-10-13 07:27:11,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:11,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:11,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:11,010 INFO L87 Difference]: Start difference. First operand 3080 states and 4101 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:11,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:11,290 INFO L93 Difference]: Finished difference Result 6388 states and 8648 transitions. [2021-10-13 07:27:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:11,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2021-10-13 07:27:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:11,319 INFO L225 Difference]: With dead ends: 6388 [2021-10-13 07:27:11,329 INFO L226 Difference]: Without dead ends: 3353 [2021-10-13 07:27:11,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2021-10-13 07:27:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3332. [2021-10-13 07:27:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3331 states have (on average 1.3173221254878416) internal successors, (4388), 3331 states have internal predecessors, (4388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4388 transitions. [2021-10-13 07:27:11,510 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4388 transitions. Word has length 326 [2021-10-13 07:27:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:11,511 INFO L470 AbstractCegarLoop]: Abstraction has 3332 states and 4388 transitions. [2021-10-13 07:27:11,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:11,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4388 transitions. [2021-10-13 07:27:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-13 07:27:11,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:11,526 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:11,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:11,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:11,739 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:11,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:11,740 INFO L82 PathProgramCache]: Analyzing trace with hash -484834399, now seen corresponding path program 1 times [2021-10-13 07:27:11,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:11,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601646010] [2021-10-13 07:27:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:11,741 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:11,743 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:11,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 07:27:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:13,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-10-13 07:27:14,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-10-13 07:27:15,168 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:15,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601646010] [2021-10-13 07:27:15,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601646010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:15,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:15,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:15,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396391378] [2021-10-13 07:27:15,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:15,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:15,171 INFO L87 Difference]: Start difference. First operand 3332 states and 4388 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:15,483 INFO L93 Difference]: Finished difference Result 6941 states and 9300 transitions. [2021-10-13 07:27:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:15,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-13 07:27:15,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:15,492 INFO L225 Difference]: With dead ends: 6941 [2021-10-13 07:27:15,493 INFO L226 Difference]: Without dead ends: 3654 [2021-10-13 07:27:15,497 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:15,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2021-10-13 07:27:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3598. [2021-10-13 07:27:15,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3597 states have (on average 1.3035863219349457) internal successors, (4689), 3597 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4689 transitions. [2021-10-13 07:27:15,640 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4689 transitions. Word has length 360 [2021-10-13 07:27:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:15,641 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 4689 transitions. [2021-10-13 07:27:15,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:15,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4689 transitions. [2021-10-13 07:27:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-10-13 07:27:15,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:15,654 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 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, 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] [2021-10-13 07:27:15,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:15,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:15,871 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:15,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2110825527, now seen corresponding path program 1 times [2021-10-13 07:27:15,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:15,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183702835] [2021-10-13 07:27:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:15,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:15,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:15,875 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:15,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 07:27:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:17,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:17,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:19,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2021-10-13 07:27:19,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2021-10-13 07:27:20,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:20,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183702835] [2021-10-13 07:27:20,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183702835] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:20,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:20,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:20,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170486536] [2021-10-13 07:27:20,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:20,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:20,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:20,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:20,449 INFO L87 Difference]: Start difference. First operand 3598 states and 4689 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:20,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:20,633 INFO L93 Difference]: Finished difference Result 10477 states and 13692 transitions. [2021-10-13 07:27:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:20,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 372 [2021-10-13 07:27:20,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:20,660 INFO L225 Difference]: With dead ends: 10477 [2021-10-13 07:27:20,661 INFO L226 Difference]: Without dead ends: 6924 [2021-10-13 07:27:20,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2021-10-13 07:27:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6922. [2021-10-13 07:27:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6922 states, 6921 states have (on average 1.305591677503251) internal successors, (9036), 6921 states have internal predecessors, (9036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 9036 transitions. [2021-10-13 07:27:20,953 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 9036 transitions. Word has length 372 [2021-10-13 07:27:20,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:20,954 INFO L470 AbstractCegarLoop]: Abstraction has 6922 states and 9036 transitions. [2021-10-13 07:27:20,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:20,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 9036 transitions. [2021-10-13 07:27:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-10-13 07:27:20,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:20,976 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 07:27:20,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:21,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:21,191 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:21,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1021269463, now seen corresponding path program 1 times [2021-10-13 07:27:21,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:21,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023567763] [2021-10-13 07:27:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:21,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:21,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:21,194 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:21,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 07:27:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:23,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:23,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2021-10-13 07:27:24,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2021-10-13 07:27:25,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:25,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023567763] [2021-10-13 07:27:25,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023567763] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:25,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:25,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:27:25,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460141418] [2021-10-13 07:27:25,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:27:25,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:25,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:27:25,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:25,693 INFO L87 Difference]: Start difference. First operand 6922 states and 9036 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:26,281 INFO L93 Difference]: Finished difference Result 14453 states and 19148 transitions. [2021-10-13 07:27:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:27:26,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2021-10-13 07:27:26,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:26,309 INFO L225 Difference]: With dead ends: 14453 [2021-10-13 07:27:26,309 INFO L226 Difference]: Without dead ends: 7576 [2021-10-13 07:27:26,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:27:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2021-10-13 07:27:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7426. [2021-10-13 07:27:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7426 states, 7425 states have (on average 1.291043771043771) internal successors, (9586), 7425 states have internal predecessors, (9586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7426 states to 7426 states and 9586 transitions. [2021-10-13 07:27:26,636 INFO L78 Accepts]: Start accepts. Automaton has 7426 states and 9586 transitions. Word has length 415 [2021-10-13 07:27:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:26,637 INFO L470 AbstractCegarLoop]: Abstraction has 7426 states and 9586 transitions. [2021-10-13 07:27:26,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7426 states and 9586 transitions. [2021-10-13 07:27:26,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-10-13 07:27:26,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:26,655 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:26,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:26,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:26,879 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:26,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:26,880 INFO L82 PathProgramCache]: Analyzing trace with hash 639999057, now seen corresponding path program 1 times [2021-10-13 07:27:26,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:26,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588328848] [2021-10-13 07:27:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:26,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:26,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:26,882 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:26,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-13 07:27:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:29,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:27:29,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1033 proven. 26 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2021-10-13 07:27:30,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1033 proven. 26 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2021-10-13 07:27:31,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:31,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588328848] [2021-10-13 07:27:31,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588328848] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:27:31,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [316664003] [2021-10-13 07:27:31,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:31,637 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:27:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:27:31,643 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:27:31,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-13 07:27:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:35,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:35,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1465 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-13 07:27:36,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1465 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-10-13 07:27:38,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [316664003] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:38,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:27:38,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 6 [2021-10-13 07:27:38,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363161549] [2021-10-13 07:27:38,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:27:38,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:38,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:27:38,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:38,069 INFO L87 Difference]: Start difference. First operand 7426 states and 9586 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:38,449 INFO L93 Difference]: Finished difference Result 14827 states and 19172 transitions. [2021-10-13 07:27:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:27:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2021-10-13 07:27:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:38,471 INFO L225 Difference]: With dead ends: 14827 [2021-10-13 07:27:38,472 INFO L226 Difference]: Without dead ends: 8535 [2021-10-13 07:27:38,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1748 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:27:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2021-10-13 07:27:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 8535. [2021-10-13 07:27:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8534 states have (on average 1.2876728380595266) internal successors, (10989), 8534 states have internal predecessors, (10989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 10989 transitions. [2021-10-13 07:27:38,844 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 10989 transitions. Word has length 438 [2021-10-13 07:27:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:38,845 INFO L470 AbstractCegarLoop]: Abstraction has 8535 states and 10989 transitions. [2021-10-13 07:27:38,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:38,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 10989 transitions. [2021-10-13 07:27:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-10-13 07:27:38,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:38,864 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:38,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:39,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:39,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:27:39,279 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:39,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1358832970, now seen corresponding path program 1 times [2021-10-13 07:27:39,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:39,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265092231] [2021-10-13 07:27:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:39,281 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:39,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:39,282 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:39,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-13 07:27:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:42,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:42,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 1014 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2021-10-13 07:27:43,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 1014 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2021-10-13 07:27:44,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:44,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265092231] [2021-10-13 07:27:44,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265092231] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:44,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:44,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:44,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507327159] [2021-10-13 07:27:44,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:44,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:44,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:44,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:44,731 INFO L87 Difference]: Start difference. First operand 8535 states and 10989 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:45,029 INFO L93 Difference]: Finished difference Result 15936 states and 20529 transitions. [2021-10-13 07:27:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2021-10-13 07:27:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:45,048 INFO L225 Difference]: With dead ends: 15936 [2021-10-13 07:27:45,049 INFO L226 Difference]: Without dead ends: 8535 [2021-10-13 07:27:45,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2021-10-13 07:27:45,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 8535. [2021-10-13 07:27:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8534 states have (on average 1.2836887743145067) internal successors, (10955), 8534 states have internal predecessors, (10955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 10955 transitions. [2021-10-13 07:27:45,353 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 10955 transitions. Word has length 441 [2021-10-13 07:27:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:45,354 INFO L470 AbstractCegarLoop]: Abstraction has 8535 states and 10955 transitions. [2021-10-13 07:27:45,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 10955 transitions. [2021-10-13 07:27:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-13 07:27:45,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:45,372 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:45,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:45,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:45,588 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:45,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1924107258, now seen corresponding path program 1 times [2021-10-13 07:27:45,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:45,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600758778] [2021-10-13 07:27:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:45,590 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:45,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:45,592 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:45,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-13 07:27:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:48,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:48,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1120 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-10-13 07:27:50,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1120 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-10-13 07:27:51,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:51,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600758778] [2021-10-13 07:27:51,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600758778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:51,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:51,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:51,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209670738] [2021-10-13 07:27:51,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:51,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:51,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:51,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:51,247 INFO L87 Difference]: Start difference. First operand 8535 states and 10955 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:51,507 INFO L93 Difference]: Finished difference Result 16018 states and 20555 transitions. [2021-10-13 07:27:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:51,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2021-10-13 07:27:51,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:51,525 INFO L225 Difference]: With dead ends: 16018 [2021-10-13 07:27:51,525 INFO L226 Difference]: Without dead ends: 8617 [2021-10-13 07:27:51,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2021-10-13 07:27:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8617. [2021-10-13 07:27:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8617 states, 8616 states have (on average 1.2821494893221912) internal successors, (11047), 8616 states have internal predecessors, (11047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:51,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 11047 transitions. [2021-10-13 07:27:51,918 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 11047 transitions. Word has length 442 [2021-10-13 07:27:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:51,919 INFO L470 AbstractCegarLoop]: Abstraction has 8617 states and 11047 transitions. [2021-10-13 07:27:51,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 11047 transitions. [2021-10-13 07:27:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-13 07:27:51,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:51,935 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:51,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:52,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:52,160 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:52,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:52,160 INFO L82 PathProgramCache]: Analyzing trace with hash 646017800, now seen corresponding path program 1 times [2021-10-13 07:27:52,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:52,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253449599] [2021-10-13 07:27:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:52,161 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:52,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:52,163 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:52,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-13 07:27:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:27:55,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:27:55,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:27:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-10-13 07:27:56,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:27:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1162 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-10-13 07:27:57,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:57,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253449599] [2021-10-13 07:27:57,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253449599] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:57,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:57,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:27:57,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4810736] [2021-10-13 07:27:57,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:27:57,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:27:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:57,954 INFO L87 Difference]: Start difference. First operand 8617 states and 11047 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:27:58,170 INFO L93 Difference]: Finished difference Result 16178 states and 20735 transitions. [2021-10-13 07:27:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:27:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2021-10-13 07:27:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:27:58,183 INFO L225 Difference]: With dead ends: 16178 [2021-10-13 07:27:58,183 INFO L226 Difference]: Without dead ends: 8695 [2021-10-13 07:27:58,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:27:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-10-13 07:27:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 8695. [2021-10-13 07:27:58,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8695 states, 8694 states have (on average 1.2807683459857373) internal successors, (11135), 8694 states have internal predecessors, (11135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8695 states to 8695 states and 11135 transitions. [2021-10-13 07:27:58,548 INFO L78 Accepts]: Start accepts. Automaton has 8695 states and 11135 transitions. Word has length 442 [2021-10-13 07:27:58,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:27:58,549 INFO L470 AbstractCegarLoop]: Abstraction has 8695 states and 11135 transitions. [2021-10-13 07:27:58,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:27:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 8695 states and 11135 transitions. [2021-10-13 07:27:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-10-13 07:27:58,569 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:27:58,570 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:27:58,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-13 07:27:58,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:27:58,791 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:27:58,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:27:58,792 INFO L82 PathProgramCache]: Analyzing trace with hash 677654922, now seen corresponding path program 1 times [2021-10-13 07:27:58,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:27:58,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298614331] [2021-10-13 07:27:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:27:58,793 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:27:58,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:27:58,795 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:27:58,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-13 07:28:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:02,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:28:02,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-10-13 07:28:03,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-10-13 07:28:04,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:04,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298614331] [2021-10-13 07:28:04,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298614331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:04,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:04,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:28:04,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611169729] [2021-10-13 07:28:04,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:28:04,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:04,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:28:04,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:04,877 INFO L87 Difference]: Start difference. First operand 8695 states and 11135 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:05,114 INFO L93 Difference]: Finished difference Result 16330 states and 20907 transitions. [2021-10-13 07:28:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:28:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2021-10-13 07:28:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:05,125 INFO L225 Difference]: With dead ends: 16330 [2021-10-13 07:28:05,125 INFO L226 Difference]: Without dead ends: 8769 [2021-10-13 07:28:05,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2021-10-13 07:28:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8769. [2021-10-13 07:28:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 8768 states have (on average 1.2795392335766422) internal successors, (11219), 8768 states have internal predecessors, (11219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 11219 transitions. [2021-10-13 07:28:05,444 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 11219 transitions. Word has length 442 [2021-10-13 07:28:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:05,445 INFO L470 AbstractCegarLoop]: Abstraction has 8769 states and 11219 transitions. [2021-10-13 07:28:05,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 11219 transitions. [2021-10-13 07:28:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-10-13 07:28:05,458 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:05,459 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:05,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:05,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:05,671 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:05,672 INFO L82 PathProgramCache]: Analyzing trace with hash 475366543, now seen corresponding path program 1 times [2021-10-13 07:28:05,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:05,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038985105] [2021-10-13 07:28:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:05,673 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:05,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:05,674 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:05,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-13 07:28:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:09,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:28:09,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 26 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2021-10-13 07:28:11,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 26 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2021-10-13 07:28:12,410 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:12,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038985105] [2021-10-13 07:28:12,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038985105] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:28:12,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [324475864] [2021-10-13 07:28:12,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:12,412 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:28:12,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:28:12,413 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:28:12,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-10-13 07:28:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:18,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:28:18,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2021-10-13 07:28:19,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1635 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2021-10-13 07:28:21,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [324475864] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:21,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:28:21,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-13 07:28:21,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736448580] [2021-10-13 07:28:21,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:28:21,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:28:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:28:21,039 INFO L87 Difference]: Start difference. First operand 8769 states and 11219 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:21,468 INFO L93 Difference]: Finished difference Result 18426 states and 23651 transitions. [2021-10-13 07:28:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:28:21,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 551 [2021-10-13 07:28:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:21,482 INFO L225 Difference]: With dead ends: 18426 [2021-10-13 07:28:21,482 INFO L226 Difference]: Without dead ends: 10791 [2021-10-13 07:28:21,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2200 GetRequests, 2194 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:28:21,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2021-10-13 07:28:21,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 10791. [2021-10-13 07:28:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10791 states, 10790 states have (on average 1.282947173308619) internal successors, (13843), 10790 states have internal predecessors, (13843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10791 states to 10791 states and 13843 transitions. [2021-10-13 07:28:21,827 INFO L78 Accepts]: Start accepts. Automaton has 10791 states and 13843 transitions. Word has length 551 [2021-10-13 07:28:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:21,828 INFO L470 AbstractCegarLoop]: Abstraction has 10791 states and 13843 transitions. [2021-10-13 07:28:21,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10791 states and 13843 transitions. [2021-10-13 07:28:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2021-10-13 07:28:21,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:21,840 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:21,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:22,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-10-13 07:28:22,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:22,241 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1109045983, now seen corresponding path program 1 times [2021-10-13 07:28:22,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:22,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52724467] [2021-10-13 07:28:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:22,243 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:22,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:22,245 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:22,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-13 07:28:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:26,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:28:26,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3565 backedges. 2030 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-10-13 07:28:28,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3565 backedges. 2030 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2021-10-13 07:28:29,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:29,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52724467] [2021-10-13 07:28:29,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52724467] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:29,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:28:29,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:28:29,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786451007] [2021-10-13 07:28:29,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:28:29,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:28:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:29,667 INFO L87 Difference]: Start difference. First operand 10791 states and 13843 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:29,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:29,961 INFO L93 Difference]: Finished difference Result 20540 states and 26341 transitions. [2021-10-13 07:28:29,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:28:29,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 593 [2021-10-13 07:28:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:29,972 INFO L225 Difference]: With dead ends: 20540 [2021-10-13 07:28:29,972 INFO L226 Difference]: Without dead ends: 10883 [2021-10-13 07:28:29,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 1183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:28:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-10-13 07:28:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10883. [2021-10-13 07:28:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10883 states, 10882 states have (on average 1.2814739937511488) internal successors, (13945), 10882 states have internal predecessors, (13945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10883 states to 10883 states and 13945 transitions. [2021-10-13 07:28:30,306 INFO L78 Accepts]: Start accepts. Automaton has 10883 states and 13945 transitions. Word has length 593 [2021-10-13 07:28:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:30,306 INFO L470 AbstractCegarLoop]: Abstraction has 10883 states and 13945 transitions. [2021-10-13 07:28:30,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 10883 states and 13945 transitions. [2021-10-13 07:28:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2021-10-13 07:28:30,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:30,321 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:30,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:30,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:30,522 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash -609123778, now seen corresponding path program 1 times [2021-10-13 07:28:30,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:30,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587875857] [2021-10-13 07:28:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:30,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:30,524 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:30,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-13 07:28:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:34,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:28:34,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2021-10-13 07:28:36,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2021-10-13 07:28:38,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:38,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587875857] [2021-10-13 07:28:38,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587875857] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:28:38,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [958789659] [2021-10-13 07:28:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:38,620 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:28:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:28:38,627 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:28:38,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-10-13 07:28:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:45,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:28:45,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 2746 proven. 0 refuted. 0 times theorem prover too weak. 2933 trivial. 0 not checked. [2021-10-13 07:28:47,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5679 backedges. 2746 proven. 0 refuted. 0 times theorem prover too weak. 2933 trivial. 0 not checked. [2021-10-13 07:28:49,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [958789659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:28:49,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:28:49,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-13 07:28:49,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621102508] [2021-10-13 07:28:49,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:28:49,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:49,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:28:49,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:49,206 INFO L87 Difference]: Start difference. First operand 10883 states and 13945 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:49,554 INFO L93 Difference]: Finished difference Result 21663 states and 27792 transitions. [2021-10-13 07:28:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:28:49,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 743 [2021-10-13 07:28:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:49,570 INFO L225 Difference]: With dead ends: 21663 [2021-10-13 07:28:49,571 INFO L226 Difference]: Without dead ends: 11914 [2021-10-13 07:28:49,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2968 GetRequests, 2963 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:28:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11914 states. [2021-10-13 07:28:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11914 to 11914. [2021-10-13 07:28:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11914 states, 11913 states have (on average 1.2811214639469488) internal successors, (15262), 11913 states have internal predecessors, (15262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11914 states to 11914 states and 15262 transitions. [2021-10-13 07:28:49,859 INFO L78 Accepts]: Start accepts. Automaton has 11914 states and 15262 transitions. Word has length 743 [2021-10-13 07:28:49,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:49,859 INFO L470 AbstractCegarLoop]: Abstraction has 11914 states and 15262 transitions. [2021-10-13 07:28:49,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:28:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 11914 states and 15262 transitions. [2021-10-13 07:28:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2021-10-13 07:28:49,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:49,876 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 07:28:49,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-13 07:28:50,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2021-10-13 07:28:50,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:28:50,279 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1681930955, now seen corresponding path program 1 times [2021-10-13 07:28:50,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:50,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890732700] [2021-10-13 07:28:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:50,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:50,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:50,281 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:50,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-13 07:28:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:55,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:28:55,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2021-10-13 07:28:57,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2021-10-13 07:28:59,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:28:59,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890732700] [2021-10-13 07:28:59,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890732700] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:28:59,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1347746820] [2021-10-13 07:28:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:59,694 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:28:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:28:59,695 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:28:59,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2021-10-13 07:29:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:07,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:29:07,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 2911 proven. 0 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2021-10-13 07:29:09,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5680 backedges. 2911 proven. 0 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2021-10-13 07:29:11,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1347746820] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:11,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:29:11,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-13 07:29:11,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383365519] [2021-10-13 07:29:11,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:11,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:29:11,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:11,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:11,396 INFO L87 Difference]: Start difference. First operand 11914 states and 15262 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:11,749 INFO L93 Difference]: Finished difference Result 22788 states and 29183 transitions. [2021-10-13 07:29:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:11,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 744 [2021-10-13 07:29:11,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:11,767 INFO L225 Difference]: With dead ends: 22788 [2021-10-13 07:29:11,768 INFO L226 Difference]: Without dead ends: 12008 [2021-10-13 07:29:11,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2972 GetRequests, 2967 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12008 states. [2021-10-13 07:29:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12008 to 12008. [2021-10-13 07:29:12,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12008 states, 12007 states have (on average 1.2797534771383359) internal successors, (15366), 12007 states have internal predecessors, (15366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12008 states to 12008 states and 15366 transitions. [2021-10-13 07:29:12,103 INFO L78 Accepts]: Start accepts. Automaton has 12008 states and 15366 transitions. Word has length 744 [2021-10-13 07:29:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:12,104 INFO L470 AbstractCegarLoop]: Abstraction has 12008 states and 15366 transitions. [2021-10-13 07:29:12,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 12008 states and 15366 transitions. [2021-10-13 07:29:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2021-10-13 07:29:12,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:12,125 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 07:29:12,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:12,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:12,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:29:12,539 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:12,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:12,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1233956165, now seen corresponding path program 1 times [2021-10-13 07:29:12,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:29:12,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934263031] [2021-10-13 07:29:12,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:12,541 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:29:12,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:29:12,542 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:29:12,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-13 07:29:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:18,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:29:18,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2021-10-13 07:29:20,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2021-10-13 07:29:21,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:21,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934263031] [2021-10-13 07:29:21,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934263031] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:21,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1037124605] [2021-10-13 07:29:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:21,855 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:29:21,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:29:21,856 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:29:21,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-10-13 07:29:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:30,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:29:30,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3084 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2021-10-13 07:29:31,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3084 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2021-10-13 07:29:33,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1037124605] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:33,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:29:33,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-13 07:29:33,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739000747] [2021-10-13 07:29:33,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:33,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:29:33,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:33,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:33,468 INFO L87 Difference]: Start difference. First operand 12008 states and 15366 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:33,854 INFO L93 Difference]: Finished difference Result 23871 states and 30588 transitions. [2021-10-13 07:29:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:33,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 745 [2021-10-13 07:29:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:33,868 INFO L225 Difference]: With dead ends: 23871 [2021-10-13 07:29:33,868 INFO L226 Difference]: Without dead ends: 12997 [2021-10-13 07:29:33,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2976 GetRequests, 2971 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.2ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12997 states. [2021-10-13 07:29:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12997 to 12997. [2021-10-13 07:29:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12997 states, 12996 states have (on average 1.2801631271160356) internal successors, (16637), 12996 states have internal predecessors, (16637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12997 states to 12997 states and 16637 transitions. [2021-10-13 07:29:34,165 INFO L78 Accepts]: Start accepts. Automaton has 12997 states and 16637 transitions. Word has length 745 [2021-10-13 07:29:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:34,166 INFO L470 AbstractCegarLoop]: Abstraction has 12997 states and 16637 transitions. [2021-10-13 07:29:34,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12997 states and 16637 transitions. [2021-10-13 07:29:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2021-10-13 07:29:34,196 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:34,197 INFO L512 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:34,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-10-13 07:29:34,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-10-13 07:29:34,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:29:34,611 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:34,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:34,612 INFO L82 PathProgramCache]: Analyzing trace with hash -593966993, now seen corresponding path program 1 times [2021-10-13 07:29:34,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:29:34,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837078285] [2021-10-13 07:29:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:34,613 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:29:34,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:29:34,614 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:29:34,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-13 07:29:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:40,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:29:40,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:29:42,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:29:44,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:29:44,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837078285] [2021-10-13 07:29:44,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837078285] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:44,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1330292198] [2021-10-13 07:29:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:44,427 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:29:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:29:44,427 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:29:44,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-10-13 07:29:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:29:53,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:29:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:29:55,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:29:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:29:57,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1330292198] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:29:57,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680014906] [2021-10-13 07:29:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:57,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:29:57,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:29:57,553 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:29:57,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-13 07:30:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:30:06,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:30:06,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:30:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:30:08,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-10-13 07:30:10,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680014906] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:30:10,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:30:10,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-13 07:30:10,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74377209] [2021-10-13 07:30:10,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:30:10,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:30:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:30:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:30:10,304 INFO L87 Difference]: Start difference. First operand 12997 states and 16637 transitions. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:30:11,156 INFO L93 Difference]: Finished difference Result 21845 states and 28188 transitions. [2021-10-13 07:30:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:30:11,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 897 [2021-10-13 07:30:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:30:11,157 INFO L225 Difference]: With dead ends: 21845 [2021-10-13 07:30:11,157 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:30:11,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5384 GetRequests, 5376 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 41.7ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:30:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:30:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:30:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:30:11,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 897 [2021-10-13 07:30:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:30:11,166 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:30:11,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:11,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:30:11,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:30:11,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:11,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:11,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:11,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:11,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:30:11,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:30:11,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:12,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:13,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:14,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 575) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 375) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 607) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 618) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 629) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 640) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L665(lines 665 667) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L665-2(lines 665 667) no Hoare annotation was computed. [2021-10-13 07:30:18,555 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 514) no Hoare annotation was computed. [2021-10-13 07:30:18,556 INFO L853 garLoopResultBuilder]: At program point L203(lines 199 608) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,556 INFO L853 garLoopResultBuilder]: At program point L104(lines 103 640) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,556 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 548) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L568(lines 568 574) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 436 444) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 374) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L337-1(lines 337 374) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 606) no Hoare annotation was computed. [2021-10-13 07:30:18,557 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 617) no Hoare annotation was computed. [2021-10-13 07:30:18,558 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 628) no Hoare annotation was computed. [2021-10-13 07:30:18,558 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 639) no Hoare annotation was computed. [2021-10-13 07:30:18,558 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 513) no Hoare annotation was computed. [2021-10-13 07:30:18,558 INFO L853 garLoopResultBuilder]: At program point L404(lines 395 416) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,558 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 371) no Hoare annotation was computed. [2021-10-13 07:30:18,558 INFO L857 garLoopResultBuilder]: For program point L305(lines 305 315) no Hoare annotation was computed. [2021-10-13 07:30:18,559 INFO L857 garLoopResultBuilder]: For program point L305-2(lines 305 315) no Hoare annotation was computed. [2021-10-13 07:30:18,559 INFO L860 garLoopResultBuilder]: At program point L206(lines 205 606) the Hoare annotation is: true [2021-10-13 07:30:18,559 INFO L853 garLoopResultBuilder]: At program point L173(lines 169 618) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,559 INFO L853 garLoopResultBuilder]: At program point L140(lines 136 629) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1) (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32)) .cse1))) [2021-10-13 07:30:18,560 INFO L857 garLoopResultBuilder]: For program point L537(lines 537 547) no Hoare annotation was computed. [2021-10-13 07:30:18,560 INFO L860 garLoopResultBuilder]: At program point L670(lines 12 672) the Hoare annotation is: true [2021-10-13 07:30:18,560 INFO L853 garLoopResultBuilder]: At program point L604(lines 100 659) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32))) (.cse0 (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse8 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32))) (.cse9 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))) (.cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse11 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse10 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse4 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse1 .cse2 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse7 .cse1 .cse2) (and .cse4 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse4 .cse1 .cse2 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32))) (and .cse4 .cse7 .cse1 .cse2) (and .cse8 .cse9 .cse10 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse11 .cse1 .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse6) (and .cse8 .cse9 .cse4 .cse1 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2 .cse6) (and (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 .cse11 .cse1 .cse2) (and .cse10 .cse4 .cse1 .cse2 .cse5) (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0))) [2021-10-13 07:30:18,560 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 573) no Hoare annotation was computed. [2021-10-13 07:30:18,560 INFO L857 garLoopResultBuilder]: For program point L571-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 442) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L860 garLoopResultBuilder]: At program point L208(lines 207 606) the Hoare annotation is: true [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 616) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 627) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 638) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 475) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L506-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 409) no Hoare annotation was computed. [2021-10-13 07:30:18,561 INFO L857 garLoopResultBuilder]: For program point L473-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L407-2(lines 403 416) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 277) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L275-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 546) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 311) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L309-2(lines 307 315) no Hoare annotation was computed. [2021-10-13 07:30:18,562 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 369) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 254) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 615) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 626) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 637) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L641(lines 641 657) no Hoare annotation was computed. [2021-10-13 07:30:18,563 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 511) no Hoare annotation was computed. [2021-10-13 07:30:18,564 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 248) no Hoare annotation was computed. [2021-10-13 07:30:18,564 INFO L853 garLoopResultBuilder]: At program point L212(lines 106 639) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,564 INFO L853 garLoopResultBuilder]: At program point L179(lines 175 616) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32)) .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,564 INFO L853 garLoopResultBuilder]: At program point L146(lines 142 627) the Hoare annotation is: (let ((.cse0 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse3 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse0 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse3))) [2021-10-13 07:30:18,564 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 656) no Hoare annotation was computed. [2021-10-13 07:30:18,564 INFO L857 garLoopResultBuilder]: For program point L543(lines 543 545) no Hoare annotation was computed. [2021-10-13 07:30:18,564 INFO L853 garLoopResultBuilder]: At program point L510(lines 73 671) the Hoare annotation is: false [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L543-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 648) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L643-2(lines 642 656) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L346(lines 346 350) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L346-2(lines 346 350) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 614) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 625) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 636) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 647) no Hoare annotation was computed. [2021-10-13 07:30:18,565 INFO L857 garLoopResultBuilder]: For program point L217(lines 217 219) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 613) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 624) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L217-2(lines 217 219) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 635) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 585) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L581-2(lines 581 585) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point L383(lines 383 418) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:30:18,566 INFO L853 garLoopResultBuilder]: At program point L185(lines 181 614) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,566 INFO L853 garLoopResultBuilder]: At program point L152(lines 148 625) the Hoare annotation is: (let ((.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse3 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse0 .cse1 .cse2 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2 .cse3))) [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 88) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L86-2(lines 83 89) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L450(lines 450 452) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L384(lines 384 390) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L450-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L860 garLoopResultBuilder]: At program point L682(lines 673 684) the Hoare annotation is: true [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 612) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 623) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 634) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L650(lines 650 654) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L485(lines 485 487) no Hoare annotation was computed. [2021-10-13 07:30:18,567 INFO L857 garLoopResultBuilder]: For program point L485-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L853 garLoopResultBuilder]: At program point L122(lines 118 635) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 523) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L519-2(lines 519 523) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 365) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 290) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L288-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L853 garLoopResultBuilder]: At program point L355(lines 331 376) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3 .cse4 .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:30:18,568 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 611) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 622) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 633) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 95) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 73 671) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L857 garLoopResultBuilder]: For program point L554(lines 554 557) no Hoare annotation was computed. [2021-10-13 07:30:18,569 INFO L853 garLoopResultBuilder]: At program point L191(lines 187 612) the Hoare annotation is: (let ((.cse1 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse3 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse2 .cse3 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse2 .cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)))) [2021-10-13 07:30:18,569 INFO L853 garLoopResultBuilder]: At program point L158(lines 154 623) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,569 INFO L853 garLoopResultBuilder]: At program point L125(lines 124 633) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 94) no Hoare annotation was computed. [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L456(lines 456 468) no Hoare annotation was computed. [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 359) no Hoare annotation was computed. [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L357-2(lines 354 363) no Hoare annotation was computed. [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-10-13 07:30:18,570 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,571 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 610) no Hoare annotation was computed. [2021-10-13 07:30:18,571 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 621) no Hoare annotation was computed. [2021-10-13 07:30:18,571 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 632) no Hoare annotation was computed. [2021-10-13 07:30:18,571 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:30:18,571 INFO L853 garLoopResultBuilder]: At program point L392(lines 383 418) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 238) no Hoare annotation was computed. [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 209 603) no Hoare annotation was computed. [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 597) no Hoare annotation was computed. [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L591-1(lines 591 597) no Hoare annotation was computed. [2021-10-13 07:30:18,572 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-10-13 07:30:18,573 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2021-10-13 07:30:18,573 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 462) no Hoare annotation was computed. [2021-10-13 07:30:18,573 INFO L857 garLoopResultBuilder]: For program point L460-2(lines 458 468) no Hoare annotation was computed. [2021-10-13 07:30:18,573 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-10-13 07:30:18,573 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 609) no Hoare annotation was computed. [2021-10-13 07:30:18,574 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 620) no Hoare annotation was computed. [2021-10-13 07:30:18,574 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 631) no Hoare annotation was computed. [2021-10-13 07:30:18,574 INFO L857 garLoopResultBuilder]: For program point L428(lines 428 430) no Hoare annotation was computed. [2021-10-13 07:30:18,574 INFO L857 garLoopResultBuilder]: For program point L395(lines 395 416) no Hoare annotation was computed. [2021-10-13 07:30:18,574 INFO L853 garLoopResultBuilder]: At program point L197(lines 193 610) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)) (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32)) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,575 INFO L853 garLoopResultBuilder]: At program point L164(lines 160 621) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 669) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L860 garLoopResultBuilder]: At program point L660(lines 99 661) the Hoare annotation is: true [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L594(lines 594 596) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L396(lines 396 402) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 576) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L529(lines 529 532) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 608) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 619) no Hoare annotation was computed. [2021-10-13 07:30:18,575 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 630) no Hoare annotation was computed. [2021-10-13 07:30:18,576 INFO L853 garLoopResultBuilder]: At program point L100-2(lines 100 659) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32))) (.cse0 (= (_ bv8528 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse8 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32))) (.cse9 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))) (.cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse11 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse10 (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse4 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse2 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse5 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv10 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse1 .cse2) (and (= (_ bv8 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse1 .cse2 (= (_ bv8608 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (and (= (_ bv8656 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse7 .cse1 .cse2) (and .cse4 (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse1 .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv9 32))) (and .cse4 .cse1 .cse2 (= (_ bv8592 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv7 32))) (and .cse4 .cse7 .cse1 .cse2) (and .cse8 .cse9 .cse10 .cse4 .cse1 .cse2 .cse6) (and .cse0 .cse11 .cse1 .cse2) (and (= (_ bv8672 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse4 (= (_ bv11 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1 .cse2 .cse6) (and .cse8 .cse9 .cse4 .cse1 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0) .cse2 .cse6) (and (= (_ bv8496 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv1 32))) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 .cse11 .cse1 .cse2) (and .cse10 .cse4 .cse1 .cse2 .cse5) (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) (and (= (_ bv8464 32) ULTIMATE.start_ssl3_accept_~s__state~0) (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32))))) [2021-10-13 07:30:18,576 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 515) no Hoare annotation was computed. [2021-10-13 07:30:18,576 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 236) no Hoare annotation was computed. [2021-10-13 07:30:18,576 INFO L853 garLoopResultBuilder]: At program point L167(lines 166 619) the Hoare annotation is: (let ((.cse1 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse2 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse0 (= (_ bv8448 32) ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse3 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse2 .cse0 .cse3) (and .cse1 .cse2 .cse0 .cse3 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse1 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse0 .cse3) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv12 32)) (= (_ bv3 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1 .cse2 .cse0 .cse3 (= ULTIMATE.start_ssl3_accept_~s__hit~0 (_ bv0 32))))) [2021-10-13 07:30:18,576 INFO L853 garLoopResultBuilder]: At program point L134(lines 127 632) the Hoare annotation is: (let ((.cse2 (= (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~l~0) (_ bv0 32))) (.cse0 (not (= (_ bv8512 32) ULTIMATE.start_ssl3_accept_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0 ULTIMATE.start_ssl3_accept_~__cil_tmp56~0)) (.cse4 (= (_ bv0 32) (bvadd (_ bv256 32) ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0))) (.cse1 (not (= (_ bv8640 32) ULTIMATE.start_ssl3_accept_~s__state~0)))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse3 .cse4 (= (_ bv6 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse2 (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv5 32)) .cse0 .cse3 .cse4 .cse1) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~0 (_ bv0 32)) .cse0 .cse1) (and .cse2 (= (_ bv4 32) ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse0 .cse3 .cse4 .cse1))) [2021-10-13 07:30:18,576 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:30:18,581 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:30:18,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:30:18 BoogieIcfgContainer [2021-10-13 07:30:18,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:30:18,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:30:18,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:30:18,705 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:30:18,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:31" (3/4) ... [2021-10-13 07:30:18,710 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:30:18,733 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:30:18,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:30:18,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:30:18,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:30:18,925 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:30:18,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:30:18,928 INFO L168 Benchmark]: Toolchain (without parser) took 229476.82 ms. Allocated memory was 65.0 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 43.9 MB in the beginning and 379.1 MB in the end (delta: -335.2 MB). Peak memory consumption was 844.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,928 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:18,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.94 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 44.1 MB in the end (delta: -354.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.65 ms. Allocated memory is still 65.0 MB. Free memory was 44.1 MB in the beginning and 41.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,931 INFO L168 Benchmark]: Boogie Preprocessor took 62.34 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 38.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,932 INFO L168 Benchmark]: RCFGBuilder took 1085.69 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 38.8 MB in the beginning and 60.9 MB in the end (delta: -22.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,933 INFO L168 Benchmark]: TraceAbstraction took 227562.53 ms. Allocated memory was 94.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 60.6 MB in the beginning and 392.7 MB in the end (delta: -332.1 MB). Peak memory consumption was 951.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,933 INFO L168 Benchmark]: Witness Printer took 220.62 ms. Allocated memory is still 1.2 GB. Free memory was 392.7 MB in the beginning and 379.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:18,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.94 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 44.1 MB in the end (delta: -354.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.65 ms. Allocated memory is still 65.0 MB. Free memory was 44.1 MB in the beginning and 41.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.34 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 38.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1085.69 ms. Allocated memory was 65.0 MB in the beginning and 94.4 MB in the end (delta: 29.4 MB). Free memory was 38.8 MB in the beginning and 60.9 MB in the end (delta: -22.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 227562.53 ms. Allocated memory was 94.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 60.6 MB in the beginning and 392.7 MB in the end (delta: -332.1 MB). Peak memory consumption was 951.3 MB. Max. memory is 16.1 GB. * Witness Printer took 220.62 ms. Allocated memory is still 1.2 GB. Free memory was 392.7 MB in the beginning and 379.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 669]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 227371.7ms, OverallIterations: 33, TraceHistogramMax: 26, EmptinessCheckTime: 379.5ms, AutomataDifference: 9961.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6770.5ms, InitialAbstractionConstructionTime: 17.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9756 SDtfs, 4987 SDslu, 8382 SDs, 0 SdLazy, 3512 SolverSat, 845 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3644.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31730 GetRequests, 31654 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 358.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12997occurred in iteration=32, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5591.1ms AutomataMinimizationTime, 33 MinimizatonAttempts, 3050 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 811 NumberOfFragments, 2528 HoareAnnotationTreeSize, 28 FomulaSimplifications, 90880 FormulaSimplificationTreeSizeReduction, 2204.3ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 2737 FormulaSimplificationTreeSizeReductionInter, 4543.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 977.5ms SsaConstructionTime, 5150.6ms SatisfiabilityAnalysisTime, 80350.1ms InterpolantComputationTime, 15898 NumberOfCodeBlocks, 15898 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 31714 ConstructedInterpolants, 0 QuantifiedInterpolants, 40484 SizeOfPredicates, 14 NumberOfNonLiveVariables, 18476 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 82 InterpolantComputations, 64 PerfectInterpolantSequences, 183002/183470 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((3bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 673]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((((((((((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) || (((3bv32 == blastFlag && 8528bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8608bv32 == s__state)) || (((((8656bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32)) || (((8528bv32 == s__state && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8592bv32 == s__state) && blastFlag == 7bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && 3bv32 == s__state) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (((8528bv32 == s__state && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || (((((8672bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && 11bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (8496bv32 == s__state && blastFlag == 1bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || (((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((3bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32)) || 2bv32 == blastFlag - InvariantResult [Line: 383]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 395]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((blastFlag == 0bv32 && !(8512bv32 == s__state)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (2bv32 == blastFlag && !(8640bv32 == s__state))) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((((8448bv32 == s__state && 2bv32 == blastFlag) || ((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || ((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((!(8512bv32 == s__state) && blastFlag == 1bv32) && !(8640bv32 == s__state)) - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 7bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || ((((((~bvadd64(256bv32, l) == 0bv32 && 11bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: (((((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state)) || (((((~bvadd64(256bv32, l) == 0bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || (((((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (((((((blastFlag == 5bv32 && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) || ((!(8512bv32 == s__state) && 2bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((!(8512bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) && !(8640bv32 == s__state))) || ((((4bv32 == blastFlag && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state))) || ((((3bv32 == blastFlag && !(8512bv32 == s__state)) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && !(8640bv32 == s__state)) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((((((((((((((((8528bv32 == s__state && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag) || (((3bv32 == blastFlag && 8528bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((8bv32 == blastFlag && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8608bv32 == s__state)) || (((((8656bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32) && s__hit == 0bv32)) || (((8528bv32 == s__state && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((~bvadd64(256bv32, l) == 0bv32 && 8640bv32 == s__state) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 9bv32)) || ((((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 8592bv32 == s__state) && blastFlag == 7bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && blastFlag == 5bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && 3bv32 == s__state) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (((8528bv32 == s__state && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || (((((8672bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && 11bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || ((((((blastFlag == 12bv32 && 3bv32 == s__s3__tmp__next_state___0) && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 8448bv32 == s__state) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && s__hit == 0bv32)) || (8496bv32 == s__state && blastFlag == 1bv32)) || (((~bvadd64(256bv32, l) == 0bv32 && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && 6bv32 == blastFlag)) || (((~bvadd64(256bv32, l) == 0bv32 && 4bv32 == blastFlag) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms))) || ((((3bv32 == s__state && ~bvadd64(256bv32, l) == 0bv32) && s__s3__tmp__new_cipher__algorithms == __cil_tmp56) && 0bv32 == ~bvadd64(256bv32, s__s3__tmp__new_cipher__algorithms)) && blastFlag == 10bv32)) || 2bv32 == blastFlag) || (8464bv32 == s__state && blastFlag == 0bv32) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:30:19,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17fab8ec-ecb8-46cd-9f7f-f79f97c8713f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...