./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label03.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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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 113ebdaa5b4d40ce51ce6474ca69e0b1371ad4a7 ........................................................................................................................................................................................................................................................................................................................................................ 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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 113ebdaa5b4d40ce51ce6474ca69e0b1371ad4a7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:44:12,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:12,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:13,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:13,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:13,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:13,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:13,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:13,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:13,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:13,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:13,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:13,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:13,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:13,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:13,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:13,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:13,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:13,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:13,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:13,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:13,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:13,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:13,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:13,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:13,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:13,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:13,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:13,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:13,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:13,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:13,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:13,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:13,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:13,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:13,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:13,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:13,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:13,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:13,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:13,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:13,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:13,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:13,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:13,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:13,128 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:13,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:13,128 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:13,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:13,129 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:13,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:13,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:13,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:13,130 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:13,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:13,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:13,130 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:13,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:13,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:13,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:13,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:13,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:13,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:13,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:13,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:13,133 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:13,133 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:13,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:13,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:13,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:13,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:13,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:13,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:13,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:13,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:13,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:13,135 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:13,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:13,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:13,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:13,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:13,136 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 113ebdaa5b4d40ce51ce6474ca69e0b1371ad4a7 [2021-10-13 06:44:13,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:13,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:13,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:13,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:13,405 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:13,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label03.c [2021-10-13 06:44:13,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/9bb812f94/c7a6cd6bc427488a8a089fb758134f58/FLAG2cdb79252 [2021-10-13 06:44:14,148 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:14,149 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c [2021-10-13 06:44:14,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/9bb812f94/c7a6cd6bc427488a8a089fb758134f58/FLAG2cdb79252 [2021-10-13 06:44:14,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/9bb812f94/c7a6cd6bc427488a8a089fb758134f58 [2021-10-13 06:44:14,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:14,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:14,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:14,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:14,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:14,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:14" (1/1) ... [2021-10-13 06:44:14,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a01ab43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:14, skipping insertion in model container [2021-10-13 06:44:14,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:14" (1/1) ... [2021-10-13 06:44:14,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:14,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:14,751 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c[4398,4411] [2021-10-13 06:44:15,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:15,101 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:15,123 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c[4398,4411] [2021-10-13 06:44:15,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:15,359 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:15,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15 WrapperNode [2021-10-13 06:44:15,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:15,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:15,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:15,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:15,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:15,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:15,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:15,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:15,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:15,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:15,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:15,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:15,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (1/1) ... [2021-10-13 06:44:15,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:15,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:15,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:15,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:44:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:36,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:36,060 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:44:36,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:36 BoogieIcfgContainer [2021-10-13 06:44:36,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:36,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:36,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:36,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:36,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:14" (1/3) ... [2021-10-13 06:44:36,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a461c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:36, skipping insertion in model container [2021-10-13 06:44:36,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:15" (2/3) ... [2021-10-13 06:44:36,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a461c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:36, skipping insertion in model container [2021-10-13 06:44:36,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:36" (3/3) ... [2021-10-13 06:44:36,069 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label03.c [2021-10-13 06:44:36,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:36,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:44:36,118 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:36,124 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 06:44:36,124 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:44:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 06:44:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 06:44:36,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:36,142 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 06:44:36,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:36,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:36,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1191217187, now seen corresponding path program 1 times [2021-10-13 06:44:36,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:36,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877620705] [2021-10-13 06:44:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:36,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:36,515 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 06:44:36,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:36,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877620705] [2021-10-13 06:44:36,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877620705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:36,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:36,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:44:36,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973587667] [2021-10-13 06:44:36,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:44:36,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:44:36,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:44:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:36,551 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 06:44:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:36,652 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 06:44:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:36,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-13 06:44:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:36,660 INFO L225 Difference]: With dead ends: 23 [2021-10-13 06:44:36,660 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 06:44:36,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:44:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 06:44:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 06:44:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 06:44:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 06:44:36,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 06:44:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:36,692 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 06:44:36,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 06:44:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 06:44:36,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 06:44:36,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:36,693 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 06:44:36,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:44:36,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:36,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1616883293, now seen corresponding path program 1 times [2021-10-13 06:44:36,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:44:36,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141368301] [2021-10-13 06:44:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:36,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:44:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:37,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:44:37,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141368301] [2021-10-13 06:44:37,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141368301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:44:37,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907798794] [2021-10-13 06:44:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:37,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:44:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:37,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:44:37,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:44:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:37,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:44:37,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:42,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:45:41,291 WARN L207 SmtUtils]: Spent 56.91 s on a formula simplification. DAG size of input: 4102 DAG size of output: 4100 [2021-10-13 06:50:18,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 06:50:18,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114457069] [2021-10-13 06:50:18,272 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 06:50:18,273 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:50:18,277 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:50:18,282 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:50:18,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:50:18,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:50:18,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 06:50:18,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:50:18,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 06:50:18,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:50:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:50:18,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:50:18,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:50:18,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 06:50:18,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:50:18,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:50:18,375 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:50:18,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:18,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:50:18,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:50:18,398 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:50:18,398 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-13 06:50:18,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:18,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-13 06:50:18,612 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| 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 06:50:18,616 INFO L168 Benchmark]: Toolchain (without parser) took 364249.28 ms. Allocated memory was 96.5 MB in the beginning and 3.9 GB in the end (delta: 3.8 GB). Free memory was 60.4 MB in the beginning and 1.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,616 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:50:18,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 992.94 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.2 MB in the beginning and 98.3 MB in the end (delta: -38.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.43 ms. Allocated memory is still 127.9 MB. Free memory was 97.7 MB in the beginning and 80.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,618 INFO L168 Benchmark]: Boogie Preprocessor took 181.44 ms. Allocated memory is still 127.9 MB. Free memory was 80.9 MB in the beginning and 71.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,619 INFO L168 Benchmark]: RCFGBuilder took 20359.52 ms. Allocated memory was 127.9 MB in the beginning and 1.0 GB in the end (delta: 878.7 MB). Free memory was 71.7 MB in the beginning and 561.3 MB in the end (delta: -489.6 MB). Peak memory consumption was 390.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,620 INFO L168 Benchmark]: TraceAbstraction took 342551.50 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 561.3 MB in the beginning and 1.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. [2021-10-13 06:50:18,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 992.94 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 60.2 MB in the beginning and 98.3 MB in the end (delta: -38.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 157.43 ms. Allocated memory is still 127.9 MB. Free memory was 97.7 MB in the beginning and 80.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 181.44 ms. Allocated memory is still 127.9 MB. Free memory was 80.9 MB in the beginning and 71.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 20359.52 ms. Allocated memory was 127.9 MB in the beginning and 1.0 GB in the end (delta: 878.7 MB). Free memory was 71.7 MB in the beginning and 561.3 MB in the end (delta: -489.6 MB). Peak memory consumption was 390.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 342551.50 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 561.3 MB in the beginning and 1.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: 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 06:50:18,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:50:21,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:50:21,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:50:21,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:50:21,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:50:21,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:50:21,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:50:21,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:50:21,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:50:21,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:50:21,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:50:21,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:50:21,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:50:21,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:50:21,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:50:21,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:50:21,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:50:21,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:50:21,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:50:21,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:50:21,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:50:21,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:50:21,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:50:21,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:50:21,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:50:21,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:50:21,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:50:21,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:50:21,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:50:21,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:50:21,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:50:21,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:50:21,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:50:21,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:50:21,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:50:21,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:50:21,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:50:21,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:50:21,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:50:21,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:50:21,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:50:21,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:50:21,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:50:21,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:50:21,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:50:21,322 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:50:21,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:50:21,323 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:50:21,323 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:50:21,323 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:50:21,324 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:50:21,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:50:21,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:50:21,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:50:21,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:50:21,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:50:21,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:50:21,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:50:21,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:50:21,328 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:50:21,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:50:21,328 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:50:21,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:50:21,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:50:21,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:50:21,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:50:21,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:50:21,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:50:21,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:50:21,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:50:21,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:50:21,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:50:21,331 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:50:21,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:50:21,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:50:21,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:50:21,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:50:21,332 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 113ebdaa5b4d40ce51ce6474ca69e0b1371ad4a7 [2021-10-13 06:50:21,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:50:21,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:50:21,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:50:21,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:50:21,729 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:50:21,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label03.c [2021-10-13 06:50:21,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/b3324f68d/fedcabdfbad741f4ac1632a5eefc164f/FLAG668c6248d [2021-10-13 06:50:22,581 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:50:22,586 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c [2021-10-13 06:50:22,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/b3324f68d/fedcabdfbad741f4ac1632a5eefc164f/FLAG668c6248d [2021-10-13 06:50:22,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/data/b3324f68d/fedcabdfbad741f4ac1632a5eefc164f [2021-10-13 06:50:22,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:50:22,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:50:22,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:50:22,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:50:22,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:50:22,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:50:22" (1/1) ... [2021-10-13 06:50:22,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5898d47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:22, skipping insertion in model container [2021-10-13 06:50:22,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:50:22" (1/1) ... [2021-10-13 06:50:22,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:50:22,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:50:23,123 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c[4398,4411] [2021-10-13 06:50:23,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:50:23,504 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:50:23,540 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_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/sv-benchmarks/c/eca-rers2012/Problem11_label03.c[4398,4411] [2021-10-13 06:50:23,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:50:23,757 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:50:23,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23 WrapperNode [2021-10-13 06:50:23,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:50:23,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:50:23,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:50:23,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:50:23,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:50:23,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:50:23,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:50:23,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:50:23,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:50:23,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:50:23,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:50:23,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:50:23,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (1/1) ... [2021-10-13 06:50:23,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:50:23,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:50:24,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:50:24,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:50:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:50:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:50:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:50:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:50:31,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:50:31,819 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:50:31,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:31 BoogieIcfgContainer [2021-10-13 06:50:31,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:50:31,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:50:31,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:50:31,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:50:31,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:50:22" (1/3) ... [2021-10-13 06:50:31,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc4d47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:50:31, skipping insertion in model container [2021-10-13 06:50:31,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:50:23" (2/3) ... [2021-10-13 06:50:31,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc4d47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:50:31, skipping insertion in model container [2021-10-13 06:50:31,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:31" (3/3) ... [2021-10-13 06:50:31,832 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label03.c [2021-10-13 06:50:31,837 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:50:31,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:50:31,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:50:31,895 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 06:50:31,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:50:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 06:50:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 06:50:31,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:50:31,931 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] [2021-10-13 06:50:31,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:50:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:50:31,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1722039382, now seen corresponding path program 1 times [2021-10-13 06:50:31,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:50:31,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943333791] [2021-10-13 06:50:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:31,959 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:50:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:50:31,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:50:32,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:50:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:32,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:50:32,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:50:32,366 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 06:50:32,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:50:32,576 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 06:50:32,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:50:32,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943333791] [2021-10-13 06:50:32,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943333791] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:50:32,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:50:32,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:50:32,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100587257] [2021-10-13 06:50:32,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:50:32,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:50:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:50:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:50:32,601 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 06:50:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:50:44,463 INFO L93 Difference]: Finished difference Result 959 states and 1737 transitions. [2021-10-13 06:50:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:50:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 30 [2021-10-13 06:50:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:50:44,494 INFO L225 Difference]: With dead ends: 959 [2021-10-13 06:50:44,494 INFO L226 Difference]: Without dead ends: 609 [2021-10-13 06:50:44,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:50:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-13 06:50:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 595. [2021-10-13 06:50:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.5134680134680134) internal successors, (899), 594 states have internal predecessors, (899), 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 06:50:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 899 transitions. [2021-10-13 06:50:44,583 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 899 transitions. Word has length 30 [2021-10-13 06:50:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:50:44,584 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 899 transitions. [2021-10-13 06:50:44,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 06:50:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 899 transitions. [2021-10-13 06:50:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 06:50:44,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:50:44,589 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:44,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:44,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:50:44,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:50:44,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:50:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1150491815, now seen corresponding path program 1 times [2021-10-13 06:50:44,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:50:44,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284924248] [2021-10-13 06:50:44,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:44,802 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:50:44,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:50:44,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:50:44,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:50:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:44,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:50:44,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:50:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:45,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:50:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:49,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:50:49,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284924248] [2021-10-13 06:50:49,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284924248] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:50:49,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:50:49,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:50:49,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913126296] [2021-10-13 06:50:49,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:50:49,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:50:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:50:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:50:49,033 INFO L87 Difference]: Start difference. First operand 595 states and 899 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 06:50:59,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:50:59,264 INFO L93 Difference]: Finished difference Result 1930 states and 2890 transitions. [2021-10-13 06:50:59,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:50:59,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 96 [2021-10-13 06:50:59,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:50:59,286 INFO L225 Difference]: With dead ends: 1930 [2021-10-13 06:50:59,286 INFO L226 Difference]: Without dead ends: 1337 [2021-10-13 06:50:59,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:50:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2021-10-13 06:50:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1335. [2021-10-13 06:50:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1334 states have (on average 1.4325337331334334) internal successors, (1911), 1334 states have internal predecessors, (1911), 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 06:50:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1911 transitions. [2021-10-13 06:50:59,343 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1911 transitions. Word has length 96 [2021-10-13 06:50:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:50:59,344 INFO L470 AbstractCegarLoop]: Abstraction has 1335 states and 1911 transitions. [2021-10-13 06:50:59,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 06:50:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1911 transitions. [2021-10-13 06:50:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-10-13 06:50:59,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:50:59,355 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 06:50:59,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:59,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:50:59,559 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:50:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:50:59,560 INFO L82 PathProgramCache]: Analyzing trace with hash 919164995, now seen corresponding path program 1 times [2021-10-13 06:50:59,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:50:59,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569018129] [2021-10-13 06:50:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:50:59,564 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:50:59,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:50:59,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:50:59,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:50:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:50:59,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:50:59,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:51:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 06:51:00,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 06:51:01,147 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:51:01,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569018129] [2021-10-13 06:51:01,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569018129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:51:01,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:51:01,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:51:01,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955202949] [2021-10-13 06:51:01,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:51:01,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:51:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:51:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:51:01,150 INFO L87 Difference]: Start difference. First operand 1335 states and 1911 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 06:51:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:51:25,509 INFO L93 Difference]: Finished difference Result 4883 states and 7121 transitions. [2021-10-13 06:51:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:51:25,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 177 [2021-10-13 06:51:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:51:25,544 INFO L225 Difference]: With dead ends: 4883 [2021-10-13 06:51:25,545 INFO L226 Difference]: Without dead ends: 3550 [2021-10-13 06:51:25,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:51:25,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2021-10-13 06:51:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3550. [2021-10-13 06:51:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 1.277824739363201) internal successors, (4535), 3549 states have internal predecessors, (4535), 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 06:51:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4535 transitions. [2021-10-13 06:51:25,668 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4535 transitions. Word has length 177 [2021-10-13 06:51:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:51:25,669 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 4535 transitions. [2021-10-13 06:51:25,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 06:51:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4535 transitions. [2021-10-13 06:51:25,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-10-13 06:51:25,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:51:25,683 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 06:51:25,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:51:25,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:51:25,902 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:51:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:51:25,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1060198794, now seen corresponding path program 1 times [2021-10-13 06:51:25,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:51:25,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59129717] [2021-10-13 06:51:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:51:25,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:51:25,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:51:25,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:51:25,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:51:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:51:26,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:51:26,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:51:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:27,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:28,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:51:28,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59129717] [2021-10-13 06:51:28,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59129717] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:51:28,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:51:28,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:51:28,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821065647] [2021-10-13 06:51:28,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:51:28,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:51:28,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:51:28,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:51:28,334 INFO L87 Difference]: Start difference. First operand 3550 states and 4535 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 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 06:51:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:51:40,169 INFO L93 Difference]: Finished difference Result 8038 states and 10357 transitions. [2021-10-13 06:51:40,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:51:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 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 218 [2021-10-13 06:51:40,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:51:40,202 INFO L225 Difference]: With dead ends: 8038 [2021-10-13 06:51:40,203 INFO L226 Difference]: Without dead ends: 4674 [2021-10-13 06:51:40,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:51:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2021-10-13 06:51:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4655. [2021-10-13 06:51:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4655 states, 4654 states have (on average 1.2541899441340782) internal successors, (5837), 4654 states have internal predecessors, (5837), 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 06:51:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4655 states to 4655 states and 5837 transitions. [2021-10-13 06:51:40,355 INFO L78 Accepts]: Start accepts. Automaton has 4655 states and 5837 transitions. Word has length 218 [2021-10-13 06:51:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:51:40,357 INFO L470 AbstractCegarLoop]: Abstraction has 4655 states and 5837 transitions. [2021-10-13 06:51:40,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 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 06:51:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4655 states and 5837 transitions. [2021-10-13 06:51:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-10-13 06:51:40,364 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:51:40,365 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:51:40,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:51:40,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:51:40,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:51:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:51:40,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1945365349, now seen corresponding path program 1 times [2021-10-13 06:51:40,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:51:40,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175641302] [2021-10-13 06:51:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:51:40,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:51:40,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:51:40,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:51:40,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:51:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:51:41,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:51:41,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:51:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:42,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:42,692 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:51:42,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175641302] [2021-10-13 06:51:42,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175641302] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:51:42,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:51:42,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 06:51:42,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897678803] [2021-10-13 06:51:42,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:51:42,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:51:42,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:51:42,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:51:42,702 INFO L87 Difference]: Start difference. First operand 4655 states and 5837 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 06:51:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:51:52,814 INFO L93 Difference]: Finished difference Result 10779 states and 13768 transitions. [2021-10-13 06:51:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:51:52,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 233 [2021-10-13 06:51:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:51:52,868 INFO L225 Difference]: With dead ends: 10779 [2021-10-13 06:51:52,868 INFO L226 Difference]: Without dead ends: 6310 [2021-10-13 06:51:52,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:51:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2021-10-13 06:51:53,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6124. [2021-10-13 06:51:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 6123 states have (on average 1.2493875551200393) internal successors, (7650), 6123 states have internal predecessors, (7650), 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 06:51:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 7650 transitions. [2021-10-13 06:51:53,081 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 7650 transitions. Word has length 233 [2021-10-13 06:51:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:51:53,082 INFO L470 AbstractCegarLoop]: Abstraction has 6124 states and 7650 transitions. [2021-10-13 06:51:53,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 06:51:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 7650 transitions. [2021-10-13 06:51:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-10-13 06:51:53,089 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:51:53,090 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 06:51:53,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:51:53,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:51:53,308 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:51:53,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:51:53,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1605176635, now seen corresponding path program 1 times [2021-10-13 06:51:53,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:51:53,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447724277] [2021-10-13 06:51:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:51:53,311 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:51:53,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:51:53,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:51:53,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 06:51:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:51:54,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:51:54,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:51:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 55 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:55,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:56,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:51:56,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447724277] [2021-10-13 06:51:56,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447724277] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:51:56,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:51:56,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:51:56,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369944393] [2021-10-13 06:51:56,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:51:56,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:51:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:51:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:51:56,215 INFO L87 Difference]: Start difference. First operand 6124 states and 7650 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 06:52:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:17,184 INFO L93 Difference]: Finished difference Result 15374 states and 19332 transitions. [2021-10-13 06:52:17,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:52:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 249 [2021-10-13 06:52:17,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:17,236 INFO L225 Difference]: With dead ends: 15374 [2021-10-13 06:52:17,236 INFO L226 Difference]: Without dead ends: 9436 [2021-10-13 06:52:17,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:52:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2021-10-13 06:52:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 7964. [2021-10-13 06:52:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7964 states, 7963 states have (on average 1.212733894260957) internal successors, (9657), 7963 states have internal predecessors, (9657), 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 06:52:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7964 states to 7964 states and 9657 transitions. [2021-10-13 06:52:17,577 INFO L78 Accepts]: Start accepts. Automaton has 7964 states and 9657 transitions. Word has length 249 [2021-10-13 06:52:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:17,578 INFO L470 AbstractCegarLoop]: Abstraction has 7964 states and 9657 transitions. [2021-10-13 06:52:17,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 06:52:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7964 states and 9657 transitions. [2021-10-13 06:52:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-10-13 06:52:17,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:17,586 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2021-10-13 06:52:17,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-13 06:52:17,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:17,801 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:17,801 INFO L82 PathProgramCache]: Analyzing trace with hash -317079503, now seen corresponding path program 1 times [2021-10-13 06:52:17,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:17,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19263741] [2021-10-13 06:52:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:17,804 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:17,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:17,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:17,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 06:52:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:18,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:52:18,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 55 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:19,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:22,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:22,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19263741] [2021-10-13 06:52:22,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19263741] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:52:22,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:52:22,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:52:22,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172231855] [2021-10-13 06:52:22,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:52:22,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:22,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:52:22,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:52:22,178 INFO L87 Difference]: Start difference. First operand 7964 states and 9657 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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 06:52:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:48,999 INFO L93 Difference]: Finished difference Result 18140 states and 22071 transitions. [2021-10-13 06:52:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:52:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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 263 [2021-10-13 06:52:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:49,040 INFO L225 Difference]: With dead ends: 18140 [2021-10-13 06:52:49,040 INFO L226 Difference]: Without dead ends: 10177 [2021-10-13 06:52:49,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:52:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2021-10-13 06:52:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 9253. [2021-10-13 06:52:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9253 states, 9252 states have (on average 1.1784479031560744) internal successors, (10903), 9252 states have internal predecessors, (10903), 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 06:52:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9253 states to 9253 states and 10903 transitions. [2021-10-13 06:52:49,388 INFO L78 Accepts]: Start accepts. Automaton has 9253 states and 10903 transitions. Word has length 263 [2021-10-13 06:52:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:49,389 INFO L470 AbstractCegarLoop]: Abstraction has 9253 states and 10903 transitions. [2021-10-13 06:52:49,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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 06:52:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9253 states and 10903 transitions. [2021-10-13 06:52:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-10-13 06:52:49,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:49,491 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 06:52:49,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 06:52:49,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:49,692 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:49,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1918407493, now seen corresponding path program 1 times [2021-10-13 06:52:49,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:49,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113028873] [2021-10-13 06:52:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:49,696 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:49,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:49,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 06:52:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:50,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:52:50,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 06:52:52,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 06:52:56,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:56,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113028873] [2021-10-13 06:52:56,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113028873] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:56,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:56,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:52:56,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415946705] [2021-10-13 06:52:56,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:56,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:56,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:56,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:56,456 INFO L87 Difference]: Start difference. First operand 9253 states and 10903 transitions. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 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 06:53:08,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:08,893 INFO L93 Difference]: Finished difference Result 19063 states and 22405 transitions. [2021-10-13 06:53:08,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:53:08,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 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 403 [2021-10-13 06:53:08,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:08,914 INFO L225 Difference]: With dead ends: 19063 [2021-10-13 06:53:08,914 INFO L226 Difference]: Without dead ends: 10920 [2021-10-13 06:53:08,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:08,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2021-10-13 06:53:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9623. [2021-10-13 06:53:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9623 states, 9622 states have (on average 1.151112034919975) internal successors, (11076), 9622 states have internal predecessors, (11076), 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 06:53:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9623 states to 9623 states and 11076 transitions. [2021-10-13 06:53:09,176 INFO L78 Accepts]: Start accepts. Automaton has 9623 states and 11076 transitions. Word has length 403 [2021-10-13 06:53:09,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:09,177 INFO L470 AbstractCegarLoop]: Abstraction has 9623 states and 11076 transitions. [2021-10-13 06:53:09,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 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 06:53:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 9623 states and 11076 transitions. [2021-10-13 06:53:09,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-10-13 06:53:09,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:09,264 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:09,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:09,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:09,466 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:09,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1863279596, now seen corresponding path program 1 times [2021-10-13 06:53:09,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:09,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256924348] [2021-10-13 06:53:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:09,469 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:09,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:09,470 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:09,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 06:53:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:10,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 06:53:10,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 83 proven. 349 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:12,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 305 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:22,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:22,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256924348] [2021-10-13 06:53:22,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256924348] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:53:22,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1826180522] [2021-10-13 06:53:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:22,779 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:53:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:53:22,796 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:53:22,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-13 06:53:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:24,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:53:24,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-13 06:53:25,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-13 06:53:26,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1826180522] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:26,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 06:53:26,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-13 06:53:26,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411117787] [2021-10-13 06:53:26,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:53:26,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:53:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:53:26,566 INFO L87 Difference]: Start difference. First operand 9623 states and 11076 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 06:53:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:38,214 INFO L93 Difference]: Finished difference Result 19789 states and 22838 transitions. [2021-10-13 06:53:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:53:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 409 [2021-10-13 06:53:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:38,216 INFO L225 Difference]: With dead ends: 19789 [2021-10-13 06:53:38,216 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:53:38,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1632 GetRequests, 1626 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 680.5ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:53:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:53:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:53:38,249 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 06:53:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:53:38,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 409 [2021-10-13 06:53:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:38,250 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:53:38,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 06:53:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:53:38,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:53:38,253 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:53:38,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:38,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:38,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:38,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:53:38,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:53:39,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:53:39,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:53:39,852 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:53:39,852 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,853 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:53:39,853 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,853 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,853 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,854 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,855 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 06:53:39,856 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 06:53:39,857 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (or (= (_ bv10 32) ~a25~0) (and (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsle ~a29~0 (_ bv140 32)))) (not (bvsge (_ bv138 32) ~a23~0)) (= ~a25~0 (_ bv12 32)) (and (not (= (_ bv13 32) ~a25~0)) (not (bvsge (_ bv245 32) ~a29~0))) (= ~a25~0 (_ bv9 32)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,858 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 06:53:39,859 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 06:53:39,860 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 06:53:39,860 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,860 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,860 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,860 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 06:53:39,861 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 06:53:39,862 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,862 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,862 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,862 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,862 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 06:53:39,863 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 06:53:39,864 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 06:53:39,864 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,864 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (or (= (_ bv10 32) ~a25~0) (and (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsle ~a29~0 (_ bv140 32)))) (not (bvsge (_ bv138 32) ~a23~0)) (= ~a25~0 (_ bv12 32)) (and (not (= (_ bv13 32) ~a25~0)) (not (bvsge (_ bv245 32) ~a29~0))) (= ~a25~0 (_ bv9 32)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-13 06:53:39,864 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,864 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,865 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,865 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,865 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,865 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,865 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:53:39,866 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:53:39,867 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:53:39,867 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:53:39,867 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,867 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,867 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,868 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,869 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,869 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:53:39,869 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 06:53:39,869 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 06:53:39,869 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,870 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,871 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 06:53:39,871 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 06:53:39,871 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 06:53:39,871 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,871 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,872 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,873 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,873 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,873 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,873 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,873 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 06:53:39,874 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 06:53:39,875 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 06:53:39,875 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2021-10-13 06:53:39,875 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,875 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,875 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 06:53:39,876 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 06:53:39,877 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 06:53:39,877 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:53:39,877 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:53:39,877 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:53:39,877 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,878 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 06:53:39,879 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,880 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,881 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 06:53:39,881 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 06:53:39,881 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 06:53:39,881 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,881 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,882 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,883 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 06:53:39,883 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 06:53:39,883 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 06:53:39,883 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,883 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,884 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:53:39,885 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,886 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,887 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,887 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,887 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,887 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 06:53:39,887 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:53:39,888 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:53:39,889 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,889 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,889 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,889 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,889 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:53:39,890 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:53:39,891 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,891 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:53:39,891 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,891 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,891 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:53:39,892 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,893 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,894 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,894 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,894 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 06:53:39,894 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 06:53:39,894 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,895 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,896 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,896 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,896 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,896 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,896 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,897 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,898 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,898 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,898 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 06:53:39,898 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 06:53:39,898 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,899 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 06:53:39,900 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 06:53:39,901 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 06:53:39,901 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 06:53:39,906 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:53:39,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:53:39 BoogieIcfgContainer [2021-10-13 06:53:39,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:53:39,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:53:39,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:53:39,930 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:53:39,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:50:31" (3/4) ... [2021-10-13 06:53:39,933 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:53:39,980 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 06:53:39,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 06:53:39,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:53:39,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:53:40,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:53:40,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:53:40,177 INFO L168 Benchmark]: Toolchain (without parser) took 197442.25 ms. Allocated memory was 65.0 MB in the beginning and 209.7 MB in the end (delta: 144.7 MB). Free memory was 41.4 MB in the beginning and 75.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 109.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,177 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 65.0 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:53:40,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1023.41 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 41.1 MB in the beginning and 41.6 MB in the end (delta: -431.2 kB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.39 ms. Allocated memory is still 86.0 MB. Free memory was 41.6 MB in the beginning and 56.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,179 INFO L168 Benchmark]: Boogie Preprocessor took 87.89 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 49.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,179 INFO L168 Benchmark]: RCFGBuilder took 7855.57 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 48.8 MB in the beginning and 55.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,180 INFO L168 Benchmark]: TraceAbstraction took 188103.92 ms. Allocated memory was 119.5 MB in the beginning and 209.7 MB in the end (delta: 90.2 MB). Free memory was 55.0 MB in the beginning and 99.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 95.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,180 INFO L168 Benchmark]: Witness Printer took 246.31 ms. Allocated memory is still 209.7 MB. Free memory was 99.5 MB in the beginning and 75.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:40,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 65.0 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1023.41 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 41.1 MB in the beginning and 41.6 MB in the end (delta: -431.2 kB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.39 ms. Allocated memory is still 86.0 MB. Free memory was 41.6 MB in the beginning and 56.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.89 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 49.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7855.57 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 48.8 MB in the beginning and 55.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 188103.92 ms. Allocated memory was 119.5 MB in the beginning and 209.7 MB in the end (delta: 90.2 MB). Free memory was 55.0 MB in the beginning and 99.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 95.5 MB. Max. memory is 16.1 GB. * Witness Printer took 246.31 ms. Allocated memory is still 209.7 MB. Free memory was 99.5 MB in the beginning and 75.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 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: 106]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 188018.7ms, OverallIterations: 9, TraceHistogramMax: 4, EmptinessCheckTime: 251.1ms, AutomataDifference: 140674.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1191.6ms, InitialAbstractionConstructionTime: 16.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2085 SDtfs, 2277 SDslu, 289 SDs, 0 SdLazy, 7163 SolverSat, 1695 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 124096.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4954 GetRequests, 4931 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 890.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9623occurred in iteration=8, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1519.6ms AutomataMinimizationTime, 9 MinimizatonAttempts, 3914 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 130 NumberOfFragments, 73 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9072 FormulaSimplificationTreeSizeReduction, 493.3ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 2310 FormulaSimplificationTreeSizeReductionInter, 688.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 273.2ms SsaConstructionTime, 1453.8ms SatisfiabilityAnalysisTime, 33980.5ms InterpolantComputationTime, 2487 NumberOfCodeBlocks, 2487 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4954 ConstructedInterpolants, 0 QuantifiedInterpolants, 17100 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3115 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 3274/3930 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: 1044]: Loop Invariant Derived loop invariant: (((((10bv32 == a25 || (!~bvslt32(277bv32, a29) && !~bvsle32(a29, 140bv32))) || !~bvsge32(138bv32, a23)) || a25 == 12bv32) || (!(13bv32 == a25) && !~bvsge32(245bv32, a29))) || a25 == 9bv32) || !(a4 == 1bv32) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((10bv32 == a25 || (!~bvslt32(277bv32, a29) && !~bvsle32(a29, 140bv32))) || !~bvsge32(138bv32, a23)) || a25 == 12bv32) || (!(13bv32 == a25) && !~bvsge32(245bv32, a29))) || a25 == 9bv32) || !(a4 == 1bv32) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 06:53:40,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c48044b-1d64-4a3f-bf4a-53b4d3fa8a0c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...