./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:28:59,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:59,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:59,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:59,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:59,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:59,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:59,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:59,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:59,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:59,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:59,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:59,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:59,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:59,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:59,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:59,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:59,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:59,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:59,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:59,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:59,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:59,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:59,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:59,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:59,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:59,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:59,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:59,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:59,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:59,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:59,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:59,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:59,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:59,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:59,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:59,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:59,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:59,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:59,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:59,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:59,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:59,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:59,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:59,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:59,293 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:59,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:59,293 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:59,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:59,294 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:59,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:59,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:59,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:59,295 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:59,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:59,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:59,295 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:59,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:59,296 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:59,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:59,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:59,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:59,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:59,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:59,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:59,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:59,298 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:59,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:59,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:59,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:59,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:59,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:59,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:59,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:59,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:59,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:59,301 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:59,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:59,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:59,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:59,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:59,302 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_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2021-10-11 02:28:59,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:59,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:59,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:59,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:59,625 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:59,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-11 02:28:59,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/e5a05196b/30512d16b2914c979a1d7f62ffabb8f4/FLAG0d7e4e372 [2021-10-11 02:29:00,141 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:00,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-11 02:29:00,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/e5a05196b/30512d16b2914c979a1d7f62ffabb8f4/FLAG0d7e4e372 [2021-10-11 02:29:00,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/e5a05196b/30512d16b2914c979a1d7f62ffabb8f4 [2021-10-11 02:29:00,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:00,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:00,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:00,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:00,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:00,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f07726d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00, skipping insertion in model container [2021-10-11 02:29:00,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:00,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:00,695 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-11 02:29:00,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:00,771 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:00,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-11 02:29:00,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:00,840 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:00,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00 WrapperNode [2021-10-11 02:29:00,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:00,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:00,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:00,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:00,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:00,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:00,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:00,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:00,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... [2021-10-11 02:29:00,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:00,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:00,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:00,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:00,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:02,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:02,065 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-11 02:29:02,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02 BoogieIcfgContainer [2021-10-11 02:29:02,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:02,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:02,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:02,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:02,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:00" (1/3) ... [2021-10-11 02:29:02,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9e268b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:02, skipping insertion in model container [2021-10-11 02:29:02,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:00" (2/3) ... [2021-10-11 02:29:02,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9e268b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:02, skipping insertion in model container [2021-10-11 02:29:02,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02" (3/3) ... [2021-10-11 02:29:02,078 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-10-11 02:29:02,092 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:02,096 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 02:29:02,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:29:02,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:02,133 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:02,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:02,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:02,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:02,134 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:02,134 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:02,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2021-10-11 02:29:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:29:02,155 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:02,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:02,156 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:02,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:02,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1721667261, now seen corresponding path program 1 times [2021-10-11 02:29:02,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:02,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820649394] [2021-10-11 02:29:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:02,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820649394] [2021-10-11 02:29:02,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:02,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:02,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111946000] [2021-10-11 02:29:02,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:02,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:02,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:02,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:02,551 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 6 states. [2021-10-11 02:29:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:02,815 INFO L93 Difference]: Finished difference Result 210 states and 311 transitions. [2021-10-11 02:29:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:02,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:29:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:02,828 INFO L225 Difference]: With dead ends: 210 [2021-10-11 02:29:02,829 INFO L226 Difference]: Without dead ends: 145 [2021-10-11 02:29:02,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:02,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-11 02:29:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 66. [2021-10-11 02:29:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 02:29:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2021-10-11 02:29:02,877 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 10 [2021-10-11 02:29:02,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:02,877 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2021-10-11 02:29:02,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2021-10-11 02:29:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:29:02,878 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:02,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:02,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:02,879 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:02,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:02,880 INFO L82 PathProgramCache]: Analyzing trace with hash -198206187, now seen corresponding path program 1 times [2021-10-11 02:29:02,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:02,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518106895] [2021-10-11 02:29:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:02,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:02,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518106895] [2021-10-11 02:29:02,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:02,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:29:02,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784682915] [2021-10-11 02:29:03,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:29:03,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:03,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:29:03,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:03,001 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand 7 states. [2021-10-11 02:29:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:03,233 INFO L93 Difference]: Finished difference Result 239 states and 298 transitions. [2021-10-11 02:29:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:29:03,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2021-10-11 02:29:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:03,242 INFO L225 Difference]: With dead ends: 239 [2021-10-11 02:29:03,243 INFO L226 Difference]: Without dead ends: 225 [2021-10-11 02:29:03,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:29:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-11 02:29:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 98. [2021-10-11 02:29:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-11 02:29:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2021-10-11 02:29:03,276 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 13 [2021-10-11 02:29:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:03,277 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2021-10-11 02:29:03,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:29:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2021-10-11 02:29:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:29:03,280 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:03,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:03,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:29:03,281 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1800037603, now seen corresponding path program 1 times [2021-10-11 02:29:03,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:03,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274265048] [2021-10-11 02:29:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:03,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274265048] [2021-10-11 02:29:03,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:03,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:29:03,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833953097] [2021-10-11 02:29:03,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:29:03,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:03,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:29:03,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:03,552 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand 9 states. [2021-10-11 02:29:03,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:03,776 INFO L93 Difference]: Finished difference Result 176 states and 234 transitions. [2021-10-11 02:29:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:29:03,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2021-10-11 02:29:03,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:03,778 INFO L225 Difference]: With dead ends: 176 [2021-10-11 02:29:03,779 INFO L226 Difference]: Without dead ends: 164 [2021-10-11 02:29:03,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:29:03,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-10-11 02:29:03,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2021-10-11 02:29:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 02:29:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 184 transitions. [2021-10-11 02:29:03,793 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 184 transitions. Word has length 14 [2021-10-11 02:29:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:03,793 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 184 transitions. [2021-10-11 02:29:03,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:29:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 184 transitions. [2021-10-11 02:29:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:29:03,795 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:03,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:03,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:29:03,795 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:03,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1937065842, now seen corresponding path program 1 times [2021-10-11 02:29:03,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:03,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066877183] [2021-10-11 02:29:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:03,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066877183] [2021-10-11 02:29:03,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:03,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:03,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122070747] [2021-10-11 02:29:03,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:03,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:03,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:03,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:03,967 INFO L87 Difference]: Start difference. First operand 130 states and 184 transitions. Second operand 5 states. [2021-10-11 02:29:04,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:04,094 INFO L93 Difference]: Finished difference Result 196 states and 252 transitions. [2021-10-11 02:29:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:29:04,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:29:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:04,096 INFO L225 Difference]: With dead ends: 196 [2021-10-11 02:29:04,097 INFO L226 Difference]: Without dead ends: 154 [2021-10-11 02:29:04,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-11 02:29:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 110. [2021-10-11 02:29:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-10-11 02:29:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 150 transitions. [2021-10-11 02:29:04,125 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 150 transitions. Word has length 14 [2021-10-11 02:29:04,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:04,126 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 150 transitions. [2021-10-11 02:29:04,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:04,126 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 150 transitions. [2021-10-11 02:29:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:29:04,132 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:04,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:04,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:29:04,134 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:04,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:04,134 INFO L82 PathProgramCache]: Analyzing trace with hash -689073020, now seen corresponding path program 1 times [2021-10-11 02:29:04,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:04,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008935459] [2021-10-11 02:29:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:04,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008935459] [2021-10-11 02:29:04,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:04,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:04,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35126687] [2021-10-11 02:29:04,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:04,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:04,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:04,272 INFO L87 Difference]: Start difference. First operand 110 states and 150 transitions. Second operand 6 states. [2021-10-11 02:29:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:04,382 INFO L93 Difference]: Finished difference Result 199 states and 255 transitions. [2021-10-11 02:29:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:29:04,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:29:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:04,384 INFO L225 Difference]: With dead ends: 199 [2021-10-11 02:29:04,384 INFO L226 Difference]: Without dead ends: 178 [2021-10-11 02:29:04,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:04,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-11 02:29:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 105. [2021-10-11 02:29:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2021-10-11 02:29:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2021-10-11 02:29:04,398 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 17 [2021-10-11 02:29:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:04,399 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2021-10-11 02:29:04,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2021-10-11 02:29:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:04,402 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:04,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:04,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:29:04,402 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1902571858, now seen corresponding path program 1 times [2021-10-11 02:29:04,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:04,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990277647] [2021-10-11 02:29:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:04,954 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2021-10-11 02:29:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:05,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990277647] [2021-10-11 02:29:05,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:05,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-11 02:29:05,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129107945] [2021-10-11 02:29:05,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-10-11 02:29:05,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:05,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-11 02:29:05,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:29:05,237 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand 12 states. [2021-10-11 02:29:05,641 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-10-11 02:29:05,808 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-10-11 02:29:05,972 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-10-11 02:29:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:06,054 INFO L93 Difference]: Finished difference Result 180 states and 233 transitions. [2021-10-11 02:29:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 02:29:06,055 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2021-10-11 02:29:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:06,056 INFO L225 Difference]: With dead ends: 180 [2021-10-11 02:29:06,056 INFO L226 Difference]: Without dead ends: 176 [2021-10-11 02:29:06,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:29:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-11 02:29:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2021-10-11 02:29:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:29:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions. [2021-10-11 02:29:06,064 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 18 [2021-10-11 02:29:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:06,064 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 145 transitions. [2021-10-11 02:29:06,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-10-11 02:29:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2021-10-11 02:29:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:06,065 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:06,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:06,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:29:06,066 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash 162959758, now seen corresponding path program 1 times [2021-10-11 02:29:06,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:06,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837910824] [2021-10-11 02:29:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:06,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837910824] [2021-10-11 02:29:06,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:06,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 02:29:06,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608168694] [2021-10-11 02:29:06,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:29:06,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:06,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:29:06,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:06,177 INFO L87 Difference]: Start difference. First operand 106 states and 145 transitions. Second operand 8 states. [2021-10-11 02:29:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:06,507 INFO L93 Difference]: Finished difference Result 321 states and 399 transitions. [2021-10-11 02:29:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-11 02:29:06,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2021-10-11 02:29:06,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:06,510 INFO L225 Difference]: With dead ends: 321 [2021-10-11 02:29:06,510 INFO L226 Difference]: Without dead ends: 317 [2021-10-11 02:29:06,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:29:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-11 02:29:06,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 142. [2021-10-11 02:29:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-10-11 02:29:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 201 transitions. [2021-10-11 02:29:06,522 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 201 transitions. Word has length 18 [2021-10-11 02:29:06,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:06,523 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 201 transitions. [2021-10-11 02:29:06,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:29:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 201 transitions. [2021-10-11 02:29:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:06,524 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:06,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:06,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:29:06,525 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:06,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:06,525 INFO L82 PathProgramCache]: Analyzing trace with hash -394904093, now seen corresponding path program 1 times [2021-10-11 02:29:06,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:06,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923474775] [2021-10-11 02:29:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:06,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:06,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:06,631 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:29:06,631 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:06,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:29:06,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:06 BoogieIcfgContainer [2021-10-11 02:29:06,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:06,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:06,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:06,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:06,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02" (3/4) ... [2021-10-11 02:29:06,673 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:29:06,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:06,674 INFO L168 Benchmark]: Toolchain (without parser) took 6171.00 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 53.5 MB in the beginning and 57.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,675 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:06,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.41 ms. Allocated memory is still 96.5 MB. Free memory was 53.3 MB in the beginning and 67.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,677 INFO L168 Benchmark]: Boogie Preprocessor took 39.17 ms. Allocated memory is still 96.5 MB. Free memory was 65.4 MB in the beginning and 63.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,678 INFO L168 Benchmark]: RCFGBuilder took 1134.15 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 63.7 MB in the beginning and 68.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,679 INFO L168 Benchmark]: TraceAbstraction took 4598.04 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 68.2 MB in the beginning and 58.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,679 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 144.7 MB. Free memory was 58.3 MB in the beginning and 57.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,683 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 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.41 ms. Allocated memory is still 96.5 MB. Free memory was 53.3 MB in the beginning and 67.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.17 ms. Allocated memory is still 96.5 MB. Free memory was 65.4 MB in the beginning and 63.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1134.15 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 63.7 MB in the beginning and 68.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4598.04 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 68.2 MB in the beginning and 58.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.59 ms. Allocated memory is still 144.7 MB. Free memory was 58.3 MB in the beginning and 57.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 66 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 679 SDtfs, 1477 SDslu, 2597 SDs, 0 SdLazy, 439 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 602 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 10099 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:09,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:09,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:09,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:09,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:09,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:09,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:09,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:09,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:09,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:09,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:09,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:09,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:09,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:09,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:09,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:09,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:09,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:09,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:09,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:09,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:09,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:09,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:09,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:09,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:09,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:09,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:09,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:09,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:09,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:09,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:09,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:09,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:09,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:09,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:09,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:09,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:09,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:09,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:09,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:09,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:09,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:09,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:09,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:09,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:09,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:09,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:09,472 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:09,472 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:09,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:09,472 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:09,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:09,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:09,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:09,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:09,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:09,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:09,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:09,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:09,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:09,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:09,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:09,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:09,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:09,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:09,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:09,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:09,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:09,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:09,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:09,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:09,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:09,479 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:09,479 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:09,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:09,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:09,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:09,480 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_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2021-10-11 02:29:09,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:09,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:09,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:09,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:09,934 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:09,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-11 02:29:10,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/199113b6d/1ff5b2de0a1d499db19e8539cd410630/FLAGdbed95c6b [2021-10-11 02:29:10,533 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:10,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-11 02:29:10,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/199113b6d/1ff5b2de0a1d499db19e8539cd410630/FLAGdbed95c6b [2021-10-11 02:29:10,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/data/199113b6d/1ff5b2de0a1d499db19e8539cd410630 [2021-10-11 02:29:10,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:10,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:10,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:10,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:10,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:10,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:10" (1/1) ... [2021-10-11 02:29:10,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f2827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:10, skipping insertion in model container [2021-10-11 02:29:10,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:10" (1/1) ... [2021-10-11 02:29:10,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:10,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:11,056 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-11 02:29:11,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:11,167 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:11,177 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-11 02:29:11,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:11,239 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:11,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11 WrapperNode [2021-10-11 02:29:11,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:11,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:11,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:11,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:11,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:11,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:11,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:11,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:11,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:11,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:11,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:11,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:11,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:11,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:12,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:12,100 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-11 02:29:12,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:12 BoogieIcfgContainer [2021-10-11 02:29:12,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:12,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:12,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:12,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:12,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:10" (1/3) ... [2021-10-11 02:29:12,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d1fa85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:12, skipping insertion in model container [2021-10-11 02:29:12,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (2/3) ... [2021-10-11 02:29:12,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d1fa85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:12, skipping insertion in model container [2021-10-11 02:29:12,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:12" (3/3) ... [2021-10-11 02:29:12,114 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-10-11 02:29:12,128 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:12,133 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 02:29:12,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:29:12,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:12,182 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:12,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:12,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:12,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:12,183 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:12,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:12,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2021-10-11 02:29:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:12,211 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:12,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:12,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:12,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:12,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2021-10-11 02:29:12,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:12,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314758763] [2021-10-11 02:29:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:12,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:12,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:12,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:12,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314758763] [2021-10-11 02:29:12,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:12,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:12,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011170311] [2021-10-11 02:29:12,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:12,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:12,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:12,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:12,516 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 5 states. [2021-10-11 02:29:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:12,755 INFO L93 Difference]: Finished difference Result 397 states and 607 transitions. [2021-10-11 02:29:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:12,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-10-11 02:29:12,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:12,770 INFO L225 Difference]: With dead ends: 397 [2021-10-11 02:29:12,770 INFO L226 Difference]: Without dead ends: 295 [2021-10-11 02:29:12,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-11 02:29:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 120. [2021-10-11 02:29:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-10-11 02:29:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2021-10-11 02:29:12,824 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 18 [2021-10-11 02:29:12,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:12,825 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2021-10-11 02:29:12,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2021-10-11 02:29:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:12,827 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:12,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:13,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:13,054 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash -908455500, now seen corresponding path program 1 times [2021-10-11 02:29:13,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:13,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430436771] [2021-10-11 02:29:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:13,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:13,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:13,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:13,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430436771] [2021-10-11 02:29:13,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:13,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:13,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839358453] [2021-10-11 02:29:13,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:13,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:13,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:13,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:13,188 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand 5 states. [2021-10-11 02:29:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:13,363 INFO L93 Difference]: Finished difference Result 394 states and 543 transitions. [2021-10-11 02:29:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:13,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 02:29:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:13,367 INFO L225 Difference]: With dead ends: 394 [2021-10-11 02:29:13,367 INFO L226 Difference]: Without dead ends: 337 [2021-10-11 02:29:13,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-11 02:29:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 186. [2021-10-11 02:29:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2021-10-11 02:29:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 269 transitions. [2021-10-11 02:29:13,391 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 269 transitions. Word has length 22 [2021-10-11 02:29:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:13,391 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 269 transitions. [2021-10-11 02:29:13,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:13,392 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 269 transitions. [2021-10-11 02:29:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:13,393 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:13,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:13,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:13,603 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:13,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1301482510, now seen corresponding path program 1 times [2021-10-11 02:29:13,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:13,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467433201] [2021-10-11 02:29:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:13,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:13,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:13,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:13,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467433201] [2021-10-11 02:29:13,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:13,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:13,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514390157] [2021-10-11 02:29:13,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:13,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:13,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:13,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:13,796 INFO L87 Difference]: Start difference. First operand 186 states and 269 transitions. Second operand 5 states. [2021-10-11 02:29:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:13,985 INFO L93 Difference]: Finished difference Result 378 states and 535 transitions. [2021-10-11 02:29:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:13,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 02:29:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:13,988 INFO L225 Difference]: With dead ends: 378 [2021-10-11 02:29:13,988 INFO L226 Difference]: Without dead ends: 295 [2021-10-11 02:29:13,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-11 02:29:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 278. [2021-10-11 02:29:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2021-10-11 02:29:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 401 transitions. [2021-10-11 02:29:14,041 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 401 transitions. Word has length 22 [2021-10-11 02:29:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:14,042 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 401 transitions. [2021-10-11 02:29:14,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 401 transitions. [2021-10-11 02:29:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:14,047 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:14,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:14,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,259 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:14,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:14,260 INFO L82 PathProgramCache]: Analyzing trace with hash 473524852, now seen corresponding path program 1 times [2021-10-11 02:29:14,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:14,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749684075] [2021-10-11 02:29:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:14,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:29:14,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:14,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:14,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749684075] [2021-10-11 02:29:14,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:14,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:14,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064789622] [2021-10-11 02:29:14,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:14,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:14,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:14,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:14,386 INFO L87 Difference]: Start difference. First operand 278 states and 401 transitions. Second operand 6 states. [2021-10-11 02:29:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:14,575 INFO L93 Difference]: Finished difference Result 395 states and 553 transitions. [2021-10-11 02:29:14,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:14,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-10-11 02:29:14,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:14,579 INFO L225 Difference]: With dead ends: 395 [2021-10-11 02:29:14,579 INFO L226 Difference]: Without dead ends: 318 [2021-10-11 02:29:14,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-11 02:29:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 258. [2021-10-11 02:29:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-10-11 02:29:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2021-10-11 02:29:14,596 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 22 [2021-10-11 02:29:14,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:14,597 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2021-10-11 02:29:14,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2021-10-11 02:29:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:29:14,599 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:14,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:14,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,813 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:14,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 177561437, now seen corresponding path program 1 times [2021-10-11 02:29:14,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:14,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057998955] [2021-10-11 02:29:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:14,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:29:14,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:14,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:14,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057998955] [2021-10-11 02:29:14,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:14,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:29:14,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616612853] [2021-10-11 02:29:14,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:29:14,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:14,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:29:14,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:14,955 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand 7 states. [2021-10-11 02:29:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:15,257 INFO L93 Difference]: Finished difference Result 402 states and 541 transitions. [2021-10-11 02:29:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-11 02:29:15,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2021-10-11 02:29:15,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:15,260 INFO L225 Difference]: With dead ends: 402 [2021-10-11 02:29:15,260 INFO L226 Difference]: Without dead ends: 354 [2021-10-11 02:29:15,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-11 02:29:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-11 02:29:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 248. [2021-10-11 02:29:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-10-11 02:29:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 348 transitions. [2021-10-11 02:29:15,275 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 348 transitions. Word has length 26 [2021-10-11 02:29:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:15,276 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 348 transitions. [2021-10-11 02:29:15,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:29:15,276 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 348 transitions. [2021-10-11 02:29:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:15,278 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:15,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:15,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,493 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:15,493 INFO L82 PathProgramCache]: Analyzing trace with hash 755236346, now seen corresponding path program 1 times [2021-10-11 02:29:15,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:15,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786213733] [2021-10-11 02:29:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:15,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:15,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:15,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:15,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786213733] [2021-10-11 02:29:15,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:15,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:15,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23395862] [2021-10-11 02:29:15,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:15,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:15,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:15,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:15,626 INFO L87 Difference]: Start difference. First operand 248 states and 348 transitions. Second operand 4 states. [2021-10-11 02:29:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:15,665 INFO L93 Difference]: Finished difference Result 423 states and 593 transitions. [2021-10-11 02:29:15,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:15,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:29:15,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:15,668 INFO L225 Difference]: With dead ends: 423 [2021-10-11 02:29:15,668 INFO L226 Difference]: Without dead ends: 348 [2021-10-11 02:29:15,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-10-11 02:29:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 304. [2021-10-11 02:29:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-10-11 02:29:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 419 transitions. [2021-10-11 02:29:15,686 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 419 transitions. Word has length 30 [2021-10-11 02:29:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:15,686 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 419 transitions. [2021-10-11 02:29:15,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 419 transitions. [2021-10-11 02:29:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:15,688 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:15,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:15,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,903 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:15,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:15,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2021-10-11 02:29:15,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:15,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799616434] [2021-10-11 02:29:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:15,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-11 02:29:15,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:16,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:16,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799616434] [2021-10-11 02:29:16,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:16,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:16,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006550516] [2021-10-11 02:29:16,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:16,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:16,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:16,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:16,025 INFO L87 Difference]: Start difference. First operand 304 states and 419 transitions. Second operand 6 states. [2021-10-11 02:29:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:16,326 INFO L93 Difference]: Finished difference Result 783 states and 1075 transitions. [2021-10-11 02:29:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:29:16,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-10-11 02:29:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:16,332 INFO L225 Difference]: With dead ends: 783 [2021-10-11 02:29:16,332 INFO L226 Difference]: Without dead ends: 687 [2021-10-11 02:29:16,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:29:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2021-10-11 02:29:16,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 442. [2021-10-11 02:29:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2021-10-11 02:29:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 610 transitions. [2021-10-11 02:29:16,363 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 610 transitions. Word has length 30 [2021-10-11 02:29:16,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:16,364 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 610 transitions. [2021-10-11 02:29:16,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 610 transitions. [2021-10-11 02:29:16,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:16,365 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:16,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:16,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,580 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:16,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:16,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1878873742, now seen corresponding path program 1 times [2021-10-11 02:29:16,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:16,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476323938] [2021-10-11 02:29:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:29:16,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:16,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:16,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476323938] [2021-10-11 02:29:16,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:16,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:29:16,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582024839] [2021-10-11 02:29:16,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:29:16,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:16,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:29:16,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:16,730 INFO L87 Difference]: Start difference. First operand 442 states and 610 transitions. Second operand 7 states. [2021-10-11 02:29:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:17,172 INFO L93 Difference]: Finished difference Result 685 states and 927 transitions. [2021-10-11 02:29:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 02:29:17,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2021-10-11 02:29:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:17,177 INFO L225 Difference]: With dead ends: 685 [2021-10-11 02:29:17,177 INFO L226 Difference]: Without dead ends: 683 [2021-10-11 02:29:17,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:29:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-10-11 02:29:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 442. [2021-10-11 02:29:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2021-10-11 02:29:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 608 transitions. [2021-10-11 02:29:17,207 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 608 transitions. Word has length 30 [2021-10-11 02:29:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:17,207 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 608 transitions. [2021-10-11 02:29:17,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:29:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 608 transitions. [2021-10-11 02:29:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:17,209 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:17,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:17,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,424 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:17,425 INFO L82 PathProgramCache]: Analyzing trace with hash -929192940, now seen corresponding path program 1 times [2021-10-11 02:29:17,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:17,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079805253] [2021-10-11 02:29:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:17,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:29:17,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:17,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:29:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:17,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:17,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079805253] [2021-10-11 02:29:17,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:17,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:17,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928596480] [2021-10-11 02:29:17,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:17,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:17,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:17,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:17,561 INFO L87 Difference]: Start difference. First operand 442 states and 608 transitions. Second operand 4 states. [2021-10-11 02:29:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:17,664 INFO L93 Difference]: Finished difference Result 529 states and 726 transitions. [2021-10-11 02:29:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:17,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:29:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:17,669 INFO L225 Difference]: With dead ends: 529 [2021-10-11 02:29:17,669 INFO L226 Difference]: Without dead ends: 527 [2021-10-11 02:29:17,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-10-11 02:29:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 446. [2021-10-11 02:29:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2021-10-11 02:29:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 614 transitions. [2021-10-11 02:29:17,697 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 614 transitions. Word has length 30 [2021-10-11 02:29:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:17,697 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 614 transitions. [2021-10-11 02:29:17,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 614 transitions. [2021-10-11 02:29:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:17,699 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:17,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:17,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,917 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:17,918 INFO L82 PathProgramCache]: Analyzing trace with hash -929133358, now seen corresponding path program 1 times [2021-10-11 02:29:17,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:17,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111769126] [2021-10-11 02:29:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:17,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:29:17,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:18,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:29:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:18,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:18,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111769126] [2021-10-11 02:29:18,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:18,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:18,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792999143] [2021-10-11 02:29:18,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:18,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:18,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:18,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:18,042 INFO L87 Difference]: Start difference. First operand 446 states and 614 transitions. Second operand 4 states. [2021-10-11 02:29:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:18,124 INFO L93 Difference]: Finished difference Result 446 states and 614 transitions. [2021-10-11 02:29:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:18,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:29:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:18,128 INFO L225 Difference]: With dead ends: 446 [2021-10-11 02:29:18,128 INFO L226 Difference]: Without dead ends: 444 [2021-10-11 02:29:18,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-10-11 02:29:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 440. [2021-10-11 02:29:18,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2021-10-11 02:29:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 605 transitions. [2021-10-11 02:29:18,153 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 605 transitions. Word has length 30 [2021-10-11 02:29:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:18,154 INFO L481 AbstractCegarLoop]: Abstraction has 440 states and 605 transitions. [2021-10-11 02:29:18,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 605 transitions. [2021-10-11 02:29:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:18,155 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:18,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:18,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,366 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:18,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:18,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1141049161, now seen corresponding path program 1 times [2021-10-11 02:29:18,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:18,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780820554] [2021-10-11 02:29:18,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:18,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:18,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:18,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:18,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780820554] [2021-10-11 02:29:18,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:18,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:18,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432242548] [2021-10-11 02:29:18,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:18,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:18,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:18,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:18,450 INFO L87 Difference]: Start difference. First operand 440 states and 605 transitions. Second operand 3 states. [2021-10-11 02:29:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:18,547 INFO L93 Difference]: Finished difference Result 849 states and 1132 transitions. [2021-10-11 02:29:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:18,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-10-11 02:29:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:18,550 INFO L225 Difference]: With dead ends: 849 [2021-10-11 02:29:18,551 INFO L226 Difference]: Without dead ends: 412 [2021-10-11 02:29:18,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-11 02:29:18,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 300. [2021-10-11 02:29:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2021-10-11 02:29:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 398 transitions. [2021-10-11 02:29:18,573 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 398 transitions. Word has length 30 [2021-10-11 02:29:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:18,573 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 398 transitions. [2021-10-11 02:29:18,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 398 transitions. [2021-10-11 02:29:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:29:18,574 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:18,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:18,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,789 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2002224973, now seen corresponding path program 1 times [2021-10-11 02:29:18,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:18,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227562538] [2021-10-11 02:29:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:18,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:29:18,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:18,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:18,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227562538] [2021-10-11 02:29:18,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:18,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:29:18,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824402470] [2021-10-11 02:29:18,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:29:18,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:18,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:29:18,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:18,955 INFO L87 Difference]: Start difference. First operand 300 states and 398 transitions. Second operand 9 states. [2021-10-11 02:29:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:19,367 INFO L93 Difference]: Finished difference Result 373 states and 488 transitions. [2021-10-11 02:29:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 02:29:19,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2021-10-11 02:29:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:19,370 INFO L225 Difference]: With dead ends: 373 [2021-10-11 02:29:19,370 INFO L226 Difference]: Without dead ends: 360 [2021-10-11 02:29:19,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-10-11 02:29:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-11 02:29:19,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 316. [2021-10-11 02:29:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-10-11 02:29:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 418 transitions. [2021-10-11 02:29:19,394 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 418 transitions. Word has length 31 [2021-10-11 02:29:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:19,395 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 418 transitions. [2021-10-11 02:29:19,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:29:19,395 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 418 transitions. [2021-10-11 02:29:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:29:19,396 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:19,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:19,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,611 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:19,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2059483275, now seen corresponding path program 1 times [2021-10-11 02:29:19,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:19,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069467719] [2021-10-11 02:29:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:19,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:19,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:19,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:19,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069467719] [2021-10-11 02:29:19,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:19,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:19,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166826464] [2021-10-11 02:29:19,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:19,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:19,696 INFO L87 Difference]: Start difference. First operand 316 states and 418 transitions. Second operand 4 states. [2021-10-11 02:29:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:19,745 INFO L93 Difference]: Finished difference Result 320 states and 421 transitions. [2021-10-11 02:29:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:19,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 02:29:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:19,748 INFO L225 Difference]: With dead ends: 320 [2021-10-11 02:29:19,748 INFO L226 Difference]: Without dead ends: 316 [2021-10-11 02:29:19,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-10-11 02:29:19,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-10-11 02:29:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-10-11 02:29:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 413 transitions. [2021-10-11 02:29:19,768 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 413 transitions. Word has length 31 [2021-10-11 02:29:19,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:19,768 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 413 transitions. [2021-10-11 02:29:19,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:19,768 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 413 transitions. [2021-10-11 02:29:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:29:19,769 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:19,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:19,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,987 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:19,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1226989779, now seen corresponding path program 1 times [2021-10-11 02:29:19,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:19,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543289876] [2021-10-11 02:29:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:20,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:20,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:20,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:20,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543289876] [2021-10-11 02:29:20,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:20,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:20,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915967589] [2021-10-11 02:29:20,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:20,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:20,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:20,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:20,094 INFO L87 Difference]: Start difference. First operand 316 states and 413 transitions. Second operand 4 states. [2021-10-11 02:29:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:20,143 INFO L93 Difference]: Finished difference Result 498 states and 656 transitions. [2021-10-11 02:29:20,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:20,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 02:29:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:20,147 INFO L225 Difference]: With dead ends: 498 [2021-10-11 02:29:20,147 INFO L226 Difference]: Without dead ends: 425 [2021-10-11 02:29:20,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-10-11 02:29:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 332. [2021-10-11 02:29:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-10-11 02:29:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2021-10-11 02:29:20,170 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 32 [2021-10-11 02:29:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:20,170 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2021-10-11 02:29:20,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2021-10-11 02:29:20,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:29:20,171 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:20,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:20,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2021-10-11 02:29:20,384 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:20,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:20,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1711564241, now seen corresponding path program 1 times [2021-10-11 02:29:20,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:20,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510906668] [2021-10-11 02:29:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:20,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:20,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:20,543 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:29:20,543 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:20,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2021-10-11 02:29:20,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:20 BoogieIcfgContainer [2021-10-11 02:29:20,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:20,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:20,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:20,798 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:20,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:12" (3/4) ... [2021-10-11 02:29:20,800 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:20,874 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864d12ef-b443-48a4-9317-3512161ecafb/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:20,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:20,876 INFO L168 Benchmark]: Toolchain (without parser) took 10018.14 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 41.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,876 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 60.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:20,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.86 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 53.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.84 ms. Allocated memory is still 73.4 MB. Free memory was 53.3 MB in the beginning and 51.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,878 INFO L168 Benchmark]: Boogie Preprocessor took 46.65 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 49.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,878 INFO L168 Benchmark]: RCFGBuilder took 727.72 ms. Allocated memory is still 73.4 MB. Free memory was 49.2 MB in the beginning and 41.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,879 INFO L168 Benchmark]: TraceAbstraction took 8692.89 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 45.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,884 INFO L168 Benchmark]: Witness Printer took 77.08 ms. Allocated memory is still 96.5 MB. Free memory was 45.6 MB in the beginning and 41.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:20,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 53.8 MB in the end (delta: 60.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.86 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 53.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.84 ms. Allocated memory is still 73.4 MB. Free memory was 53.3 MB in the beginning and 51.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.65 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 49.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 727.72 ms. Allocated memory is still 73.4 MB. Free memory was 49.2 MB in the beginning and 41.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8692.89 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 45.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Witness Printer took 77.08 ms. Allocated memory is still 96.5 MB. Free memory was 45.6 MB in the beginning and 41.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND FALSE !(!(cond)) [L107] delta = ea - eb [L8] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.5s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2091 SDtfs, 3473 SDslu, 5805 SDs, 0 SdLazy, 1127 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 424 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 1373 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 20169 SizeOfPredicates, 55 NumberOfNonLiveVariables, 1085 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...