./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs --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 c14635b48a1cad23828e85d86c9c53e48c3a7731 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs --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 c14635b48a1cad23828e85d86c9c53e48c3a7731 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:54:49,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:54:49,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:54:49,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:54:49,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:54:49,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:54:49,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:54:49,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:54:49,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:54:49,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:54:49,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:54:49,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:54:49,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:54:49,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:54:49,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:54:49,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:54:49,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:54:49,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:54:49,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:54:49,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:54:49,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:54:49,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:54:49,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:54:49,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:54:49,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:54:49,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:54:49,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:54:49,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:54:49,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:54:49,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:54:49,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:54:49,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:54:49,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:54:49,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:54:49,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:54:49,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:54:49,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:54:49,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:54:49,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:54:49,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:54:49,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:54:49,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 01:54:50,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:54:50,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:54:50,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:54:50,043 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:54:50,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:54:50,043 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:54:50,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 01:54:50,043 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:54:50,050 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:54:50,050 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 01:54:50,051 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 01:54:50,052 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:54:50,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 01:54:50,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 01:54:50,053 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 01:54:50,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:54:50,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:54:50,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:54:50,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:54:50,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:54:50,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:54:50,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:54:50,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:54:50,055 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:54:50,055 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:54:50,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:54:50,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:54:50,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:54:50,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:54:50,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:54:50,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:54:50,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:54:50,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:54:50,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:54:50,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 01:54:50,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:54:50,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:54:50,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:54:50,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:54:50,061 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_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c14635b48a1cad23828e85d86c9c53e48c3a7731 [2021-10-16 01:54:50,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:54:50,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:54:50,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:54:50,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:54:50,404 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:54:50,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:54:50,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/484e6e96e/cc6ac73af15444aaa2852786befda818/FLAG915cc491a [2021-10-16 01:54:50,980 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:54:50,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:54:50,999 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/484e6e96e/cc6ac73af15444aaa2852786befda818/FLAG915cc491a [2021-10-16 01:54:51,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/484e6e96e/cc6ac73af15444aaa2852786befda818 [2021-10-16 01:54:51,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:54:51,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:54:51,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:54:51,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:54:51,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:54:51,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456fa3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51, skipping insertion in model container [2021-10-16 01:54:51,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:54:51,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:54:51,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-16 01:54:51,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:54:51,700 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:54:51,785 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-16 01:54:51,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:54:51,810 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:54:51,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51 WrapperNode [2021-10-16 01:54:51,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:54:51,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:54:51,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:54:51,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:54:51,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:54:51,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:54:51,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:54:51,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:54:51,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:54:51,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:54:51,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:54:51,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:54:51,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (1/1) ... [2021-10-16 01:54:51,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:54:51,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:54:52,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:54:52,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:54:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:54:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:54:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:54:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:54:52,187 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 01:54:52,747 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2021-10-16 01:54:52,748 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2021-10-16 01:54:53,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:54:53,279 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 01:54:53,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:54:53 BoogieIcfgContainer [2021-10-16 01:54:53,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:54:53,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:54:53,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:54:53,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:54:53,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:54:51" (1/3) ... [2021-10-16 01:54:53,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6ad7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:54:53, skipping insertion in model container [2021-10-16 01:54:53,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:54:51" (2/3) ... [2021-10-16 01:54:53,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6ad7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:54:53, skipping insertion in model container [2021-10-16 01:54:53,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:54:53" (3/3) ... [2021-10-16 01:54:53,298 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:54:53,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:54:53,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:54:53,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:54:53,388 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 01:54:53,388 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:54:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 01:54:53,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:54:53,436 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:54:53,436 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:54:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:54:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1895066675, now seen corresponding path program 1 times [2021-10-16 01:54:53,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:54:53,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532733784] [2021-10-16 01:54:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:54:53,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:54:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:54:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:54:53,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:54:53,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532733784] [2021-10-16 01:54:53,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532733784] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:54:53,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:54:53,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 01:54:53,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050625629] [2021-10-16 01:54:53,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:54:53,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:54:53,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:54:53,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:53,738 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:54:53,914 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2021-10-16 01:54:53,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:54:53,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-16 01:54:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:54:53,924 INFO L225 Difference]: With dead ends: 169 [2021-10-16 01:54:53,925 INFO L226 Difference]: Without dead ends: 83 [2021-10-16 01:54:53,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:53,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-16 01:54:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-16 01:54:53,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:53,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-16 01:54:53,972 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2021-10-16 01:54:53,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:54:53,972 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-16 01:54:53,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:53,973 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2021-10-16 01:54:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 01:54:53,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:54:53,975 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:54:53,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:54:53,975 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:54:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:54:53,977 INFO L82 PathProgramCache]: Analyzing trace with hash 9926788, now seen corresponding path program 1 times [2021-10-16 01:54:53,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:54:53,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561919416] [2021-10-16 01:54:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:54:53,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:54:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:54:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:54:54,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:54:54,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561919416] [2021-10-16 01:54:54,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561919416] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:54:54,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:54:54,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:54:54,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277105278] [2021-10-16 01:54:54,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:54:54,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:54:54,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:54:54,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:54,105 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:54:54,324 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2021-10-16 01:54:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:54:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-16 01:54:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:54:54,330 INFO L225 Difference]: With dead ends: 178 [2021-10-16 01:54:54,330 INFO L226 Difference]: Without dead ends: 98 [2021-10-16 01:54:54,331 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:54,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-16 01:54:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-10-16 01:54:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.431578947368421) internal successors, (136), 95 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2021-10-16 01:54:54,354 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2021-10-16 01:54:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:54:54,355 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2021-10-16 01:54:54,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2021-10-16 01:54:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 01:54:54,358 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:54:54,358 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:54:54,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 01:54:54,359 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:54:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:54:54,367 INFO L82 PathProgramCache]: Analyzing trace with hash 926223436, now seen corresponding path program 1 times [2021-10-16 01:54:54,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:54:54,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443497322] [2021-10-16 01:54:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:54:54,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:54:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:54:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 01:54:54,474 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:54:54,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443497322] [2021-10-16 01:54:54,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443497322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 01:54:54,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:54:54,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 01:54:54,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023346610] [2021-10-16 01:54:54,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:54:54,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 01:54:54,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:54:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:54,477 INFO L87 Difference]: Start difference. First operand 96 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:54:54,599 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2021-10-16 01:54:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:54:54,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-16 01:54:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:54:54,602 INFO L225 Difference]: With dead ends: 206 [2021-10-16 01:54:54,602 INFO L226 Difference]: Without dead ends: 113 [2021-10-16 01:54:54,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:54:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-16 01:54:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-10-16 01:54:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2021-10-16 01:54:54,616 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2021-10-16 01:54:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:54:54,617 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2021-10-16 01:54:54,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:54:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2021-10-16 01:54:54,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-16 01:54:54,624 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:54:54,624 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:54:54,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 01:54:54,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:54:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:54:54,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1745436620, now seen corresponding path program 1 times [2021-10-16 01:54:54,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:54:54,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282755101] [2021-10-16 01:54:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:54:54,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:54:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:54:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 01:54:54,741 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 01:54:54,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282755101] [2021-10-16 01:54:54,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282755101] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 01:54:54,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172878125] [2021-10-16 01:54:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:54:54,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:54:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:54:54,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:54:54,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 01:54:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:54:54,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 01:54:54,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:54:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 01:54:55,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:54:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-16 01:54:55,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172878125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:54:55,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [409917119] [2021-10-16 01:54:55,500 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-10-16 01:54:55,500 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 01:54:55,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 01:54:55,513 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 01:54:55,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 01:54:55,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 01:54:55,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 01:54:55,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 01:54:55,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 01:54:55,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-10-16 01:54:55,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,737 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,778 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,830 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,872 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,909 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 01:54:55,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 01:54:55,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:55,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 01:54:55,949 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-16 01:54:55,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:54:56,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 01:54:56,331 INFO L180 QuantifierPusher]: treesize reduction 60, result has 96.8 percent of original size [2021-10-16 01:54:56,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1796 [2021-10-16 01:54:56,405 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-10-16 01:54:56,405 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1838, output treesize:1796 [2021-10-16 01:54:56,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:54:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:54:56,622 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_14| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 01:54:56,628 INFO L168 Benchmark]: Toolchain (without parser) took 5274.00 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 59.2 MB in the beginning and 118.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,632 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 76.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:54:56,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.39 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 72.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.66 ms. Allocated memory is still 102.8 MB. Free memory was 72.9 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,639 INFO L168 Benchmark]: Boogie Preprocessor took 51.33 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 68.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,640 INFO L168 Benchmark]: RCFGBuilder took 1333.06 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 81.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,645 INFO L168 Benchmark]: TraceAbstraction took 3341.79 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 81.0 MB in the beginning and 118.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-10-16 01:54:56,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 76.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.39 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 72.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.66 ms. Allocated memory is still 102.8 MB. Free memory was 72.9 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.33 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 68.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1333.06 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 81.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3341.79 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 81.0 MB in the beginning and 118.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_14| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_14|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 01:54:56,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:54:59,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:54:59,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:54:59,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:54:59,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:54:59,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:54:59,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:54:59,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:54:59,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:54:59,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:54:59,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:54:59,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:54:59,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:54:59,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:54:59,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:54:59,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:54:59,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:54:59,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:54:59,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:54:59,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:54:59,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:54:59,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:54:59,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:54:59,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:54:59,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:54:59,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:54:59,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:54:59,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:54:59,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:54:59,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:54:59,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:54:59,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:54:59,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:54:59,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:54:59,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:54:59,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:54:59,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:54:59,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:54:59,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:54:59,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:54:59,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:54:59,449 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 01:54:59,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:54:59,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:54:59,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:54:59,477 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:54:59,477 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:54:59,477 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:54:59,477 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:54:59,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:54:59,478 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:54:59,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:54:59,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:54:59,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:54:59,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:54:59,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:54:59,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:54:59,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:54:59,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:54:59,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 01:54:59,481 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 01:54:59,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:54:59,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:54:59,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:54:59,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:54:59,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:54:59,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 01:54:59,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:54:59,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:54:59,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:54:59,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:54:59,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:54:59,484 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 01:54:59,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 01:54:59,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:54:59,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:54:59,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:54:59,485 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_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c14635b48a1cad23828e85d86c9c53e48c3a7731 [2021-10-16 01:55:00,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:55:00,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:55:00,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:55:00,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:55:00,117 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:55:00,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:55:00,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/ea0f2e07c/3cc386052c5f4ee1af506d4b9448a2c3/FLAG68bec8ec5 [2021-10-16 01:55:00,798 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:55:00,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:55:00,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/ea0f2e07c/3cc386052c5f4ee1af506d4b9448a2c3/FLAG68bec8ec5 [2021-10-16 01:55:01,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/data/ea0f2e07c/3cc386052c5f4ee1af506d4b9448a2c3 [2021-10-16 01:55:01,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:55:01,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:55:01,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:55:01,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:55:01,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:55:01,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498a3f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01, skipping insertion in model container [2021-10-16 01:55:01,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:55:01,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:55:01,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-16 01:55:01,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:55:01,422 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:55:01,568 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37478,37491] [2021-10-16 01:55:01,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:55:01,608 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:55:01,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01 WrapperNode [2021-10-16 01:55:01,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:55:01,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:55:01,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:55:01,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:55:01,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:55:01,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:55:01,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:55:01,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:55:01,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:55:01,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:55:01,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:55:01,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:55:01,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (1/1) ... [2021-10-16 01:55:01,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:55:01,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:55:01,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:55:01,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:55:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 01:55:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:55:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:55:01,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:55:01,961 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-16 01:55:02,760 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2021-10-16 01:55:02,762 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2021-10-16 01:55:02,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:55:02,775 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 01:55:02,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:55:02 BoogieIcfgContainer [2021-10-16 01:55:02,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:55:02,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:55:02,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:55:02,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:55:02,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:55:01" (1/3) ... [2021-10-16 01:55:02,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4691e943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:55:02, skipping insertion in model container [2021-10-16 01:55:02,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:55:01" (2/3) ... [2021-10-16 01:55:02,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4691e943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:55:02, skipping insertion in model container [2021-10-16 01:55:02,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:55:02" (3/3) ... [2021-10-16 01:55:02,790 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2021-10-16 01:55:02,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:55:02,796 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:55:02,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:55:02,874 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 01:55:02,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:55:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 01:55:02,913 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:02,913 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:02,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:02,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:02,920 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2021-10-16 01:55:02,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:02,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741671651] [2021-10-16 01:55:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:02,935 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:02,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:02,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 01:55:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:03,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:03,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:55:03,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:55:03,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:03,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741671651] [2021-10-16 01:55:03,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741671651] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:03,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:55:03,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:55:03,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842034327] [2021-10-16 01:55:03,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:03,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:03,356 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:03,597 INFO L93 Difference]: Finished difference Result 247 states and 423 transitions. [2021-10-16 01:55:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:03,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-16 01:55:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:03,615 INFO L225 Difference]: With dead ends: 247 [2021-10-16 01:55:03,615 INFO L226 Difference]: Without dead ends: 113 [2021-10-16 01:55:03,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-16 01:55:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-16 01:55:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 112 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2021-10-16 01:55:03,679 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2021-10-16 01:55:03,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:03,679 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2021-10-16 01:55:03,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2021-10-16 01:55:03,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 01:55:03,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:03,684 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:03,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 01:55:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:03,893 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:03,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2021-10-16 01:55:03,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:03,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762690289] [2021-10-16 01:55:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:03,895 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:03,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:03,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:03,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 01:55:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:03,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:03,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:55:04,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 01:55:04,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:04,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762690289] [2021-10-16 01:55:04,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762690289] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:04,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:55:04,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:55:04,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617754382] [2021-10-16 01:55:04,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:04,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:04,219 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:04,381 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-10-16 01:55:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:04,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-16 01:55:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:04,387 INFO L225 Difference]: With dead ends: 233 [2021-10-16 01:55:04,387 INFO L226 Difference]: Without dead ends: 131 [2021-10-16 01:55:04,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:04,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-16 01:55:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2021-10-16 01:55:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.5039370078740157) internal successors, (191), 127 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2021-10-16 01:55:04,414 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2021-10-16 01:55:04,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:04,415 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2021-10-16 01:55:04,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2021-10-16 01:55:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-16 01:55:04,416 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:04,417 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:04,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:04,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:04,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:04,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:04,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2021-10-16 01:55:04,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:04,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347660115] [2021-10-16 01:55:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:04,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:04,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:04,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:04,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 01:55:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:04,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:04,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:04,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:05,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:05,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347660115] [2021-10-16 01:55:05,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347660115] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:05,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:55:05,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:55:05,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964106782] [2021-10-16 01:55:05,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:05,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:05,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:05,179 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:05,211 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2021-10-16 01:55:05,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:05,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-16 01:55:05,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:05,214 INFO L225 Difference]: With dead ends: 271 [2021-10-16 01:55:05,214 INFO L226 Difference]: Without dead ends: 154 [2021-10-16 01:55:05,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:05,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-16 01:55:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-16 01:55:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.4640522875816993) internal successors, (224), 153 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2021-10-16 01:55:05,238 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2021-10-16 01:55:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:05,238 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2021-10-16 01:55:05,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2021-10-16 01:55:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-16 01:55:05,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:05,241 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:05,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:05,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:05,453 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:05,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2021-10-16 01:55:05,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:05,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201927479] [2021-10-16 01:55:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:05,455 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:05,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:05,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 01:55:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:05,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:05,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:05,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:05,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:05,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201927479] [2021-10-16 01:55:05,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201927479] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:05,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:55:05,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:55:05,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756507458] [2021-10-16 01:55:05,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:05,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:05,870 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:06,005 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2021-10-16 01:55:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:06,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-16 01:55:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:06,007 INFO L225 Difference]: With dead ends: 292 [2021-10-16 01:55:06,007 INFO L226 Difference]: Without dead ends: 175 [2021-10-16 01:55:06,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-16 01:55:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2021-10-16 01:55:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 170 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2021-10-16 01:55:06,019 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2021-10-16 01:55:06,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:06,019 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2021-10-16 01:55:06,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2021-10-16 01:55:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-16 01:55:06,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:06,022 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:06,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:06,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:06,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:06,234 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2021-10-16 01:55:06,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:06,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191102638] [2021-10-16 01:55:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:06,235 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:06,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:06,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:06,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 01:55:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:06,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:06,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:55:06,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:55:07,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:07,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191102638] [2021-10-16 01:55:07,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191102638] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:07,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [606919832] [2021-10-16 01:55:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:07,161 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:07,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:07,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 01:55:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:07,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:55:07,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-16 01:55:07,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [606919832] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:07,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:07,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:07,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510359358] [2021-10-16 01:55:07,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:07,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:07,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:07,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:07,843 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:07,909 INFO L93 Difference]: Finished difference Result 567 states and 833 transitions. [2021-10-16 01:55:07,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:07,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-16 01:55:07,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:07,913 INFO L225 Difference]: With dead ends: 567 [2021-10-16 01:55:07,913 INFO L226 Difference]: Without dead ends: 433 [2021-10-16 01:55:07,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 43.5ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-10-16 01:55:07,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2021-10-16 01:55:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 1.4560185185185186) internal successors, (629), 432 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 629 transitions. [2021-10-16 01:55:07,934 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 629 transitions. Word has length 68 [2021-10-16 01:55:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:07,934 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 629 transitions. [2021-10-16 01:55:07,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 629 transitions. [2021-10-16 01:55:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-16 01:55:07,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:07,939 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:07,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:08,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:08,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:08,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:08,342 INFO L82 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2021-10-16 01:55:08,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:08,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666062594] [2021-10-16 01:55:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:08,343 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:08,344 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:08,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 01:55:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:08,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:08,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:08,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 01:55:08,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:08,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666062594] [2021-10-16 01:55:08,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666062594] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:08,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:55:08,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-16 01:55:08,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744829844] [2021-10-16 01:55:08,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:08,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:08,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:08,953 INFO L87 Difference]: Start difference. First operand 433 states and 629 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:09,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:09,028 INFO L93 Difference]: Finished difference Result 850 states and 1237 transitions. [2021-10-16 01:55:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:09,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-10-16 01:55:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:09,033 INFO L225 Difference]: With dead ends: 850 [2021-10-16 01:55:09,033 INFO L226 Difference]: Without dead ends: 454 [2021-10-16 01:55:09,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 01:55:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-16 01:55:09,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2021-10-16 01:55:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 453 states have (on average 1.4481236203090508) internal successors, (656), 453 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 656 transitions. [2021-10-16 01:55:09,053 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 656 transitions. Word has length 69 [2021-10-16 01:55:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:09,054 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 656 transitions. [2021-10-16 01:55:09,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:09,054 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 656 transitions. [2021-10-16 01:55:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-10-16 01:55:09,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:09,057 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:09,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:09,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:09,270 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:09,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:09,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1304795004, now seen corresponding path program 1 times [2021-10-16 01:55:09,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:09,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121512215] [2021-10-16 01:55:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:09,272 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:09,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:09,273 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:09,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 01:55:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:09,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:09,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 81 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-16 01:55:09,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 81 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-16 01:55:10,341 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:10,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121512215] [2021-10-16 01:55:10,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121512215] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:10,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [56294902] [2021-10-16 01:55:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:10,342 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:10,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:10,353 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:10,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-16 01:55:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:10,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:10,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-16 01:55:11,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-16 01:55:11,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [56294902] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:11,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:11,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:11,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122781938] [2021-10-16 01:55:11,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:11,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:11,327 INFO L87 Difference]: Start difference. First operand 454 states and 656 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:11,433 INFO L93 Difference]: Finished difference Result 1130 states and 1647 transitions. [2021-10-16 01:55:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-10-16 01:55:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:11,448 INFO L225 Difference]: With dead ends: 1130 [2021-10-16 01:55:11,449 INFO L226 Difference]: Without dead ends: 713 [2021-10-16 01:55:11,452 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:11,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-10-16 01:55:11,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2021-10-16 01:55:11,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.4508426966292134) internal successors, (1033), 712 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:11,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1033 transitions. [2021-10-16 01:55:11,486 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1033 transitions. Word has length 104 [2021-10-16 01:55:11,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:11,488 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1033 transitions. [2021-10-16 01:55:11,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:11,488 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1033 transitions. [2021-10-16 01:55:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-16 01:55:11,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:11,492 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:11,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:11,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:11,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:11,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:11,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:11,912 INFO L82 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2021-10-16 01:55:11,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:11,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865202567] [2021-10-16 01:55:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:11,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:11,914 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:11,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 01:55:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:12,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:12,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:12,579 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 120 proven. 25 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-16 01:55:12,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 120 proven. 25 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-16 01:55:12,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:12,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865202567] [2021-10-16 01:55:12,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865202567] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:12,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369625932] [2021-10-16 01:55:12,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:12,967 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:12,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:12,969 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:13,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-16 01:55:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:13,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:13,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-16 01:55:13,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:14,113 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-16 01:55:14,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1369625932] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:14,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:14,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:14,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615209460] [2021-10-16 01:55:14,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:14,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:14,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:14,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:14,115 INFO L87 Difference]: Start difference. First operand 713 states and 1033 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:14,342 INFO L93 Difference]: Finished difference Result 1601 states and 2374 transitions. [2021-10-16 01:55:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:14,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-10-16 01:55:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:14,348 INFO L225 Difference]: With dead ends: 1601 [2021-10-16 01:55:14,348 INFO L226 Difference]: Without dead ends: 925 [2021-10-16 01:55:14,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.3ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-10-16 01:55:14,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 890. [2021-10-16 01:55:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 889 states have (on average 1.4510686164229472) internal successors, (1290), 889 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1290 transitions. [2021-10-16 01:55:14,387 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1290 transitions. Word has length 124 [2021-10-16 01:55:14,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:14,387 INFO L470 AbstractCegarLoop]: Abstraction has 890 states and 1290 transitions. [2021-10-16 01:55:14,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:14,388 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1290 transitions. [2021-10-16 01:55:14,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-10-16 01:55:14,390 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:14,391 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:14,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:14,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:14,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:14,807 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:14,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:14,807 INFO L82 PathProgramCache]: Analyzing trace with hash 865265025, now seen corresponding path program 1 times [2021-10-16 01:55:14,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:14,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539470987] [2021-10-16 01:55:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:14,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:14,809 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:14,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 01:55:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:15,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:15,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 160 proven. 25 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-10-16 01:55:15,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 160 proven. 25 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-10-16 01:55:16,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:16,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539470987] [2021-10-16 01:55:16,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539470987] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:16,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [455869599] [2021-10-16 01:55:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:16,185 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:16,186 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:16,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-16 01:55:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:16,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:16,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-16 01:55:17,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-16 01:55:17,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [455869599] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:17,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:17,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:17,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777161494] [2021-10-16 01:55:17,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:17,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:17,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:17,530 INFO L87 Difference]: Start difference. First operand 890 states and 1290 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:17,768 INFO L93 Difference]: Finished difference Result 1882 states and 2764 transitions. [2021-10-16 01:55:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-10-16 01:55:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:17,777 INFO L225 Difference]: With dead ends: 1882 [2021-10-16 01:55:17,777 INFO L226 Difference]: Without dead ends: 1029 [2021-10-16 01:55:17,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-10-16 01:55:17,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 995. [2021-10-16 01:55:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 994 states have (on average 1.4235412474849094) internal successors, (1415), 994 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1415 transitions. [2021-10-16 01:55:17,815 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1415 transitions. Word has length 146 [2021-10-16 01:55:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:17,815 INFO L470 AbstractCegarLoop]: Abstraction has 995 states and 1415 transitions. [2021-10-16 01:55:17,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1415 transitions. [2021-10-16 01:55:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-16 01:55:17,819 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:17,819 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:17,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:18,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:18,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:18,223 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:18,224 INFO L82 PathProgramCache]: Analyzing trace with hash -918464004, now seen corresponding path program 1 times [2021-10-16 01:55:18,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:18,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395526755] [2021-10-16 01:55:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:18,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:18,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:18,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:18,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-16 01:55:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:18,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:18,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 235 proven. 25 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-10-16 01:55:19,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 235 proven. 25 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-10-16 01:55:19,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:19,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395526755] [2021-10-16 01:55:19,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395526755] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:19,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [204451945] [2021-10-16 01:55:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:19,838 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:19,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:19,841 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:19,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-16 01:55:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:20,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:20,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-16 01:55:21,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-16 01:55:21,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [204451945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:21,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:21,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:21,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852802335] [2021-10-16 01:55:21,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:21,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:21,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:21,531 INFO L87 Difference]: Start difference. First operand 995 states and 1415 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:21,774 INFO L93 Difference]: Finished difference Result 2119 states and 3055 transitions. [2021-10-16 01:55:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-10-16 01:55:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:21,781 INFO L225 Difference]: With dead ends: 2119 [2021-10-16 01:55:21,782 INFO L226 Difference]: Without dead ends: 1161 [2021-10-16 01:55:21,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:21,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2021-10-16 01:55:21,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1135. [2021-10-16 01:55:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1134 states have (on average 1.3888888888888888) internal successors, (1575), 1134 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1575 transitions. [2021-10-16 01:55:21,824 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1575 transitions. Word has length 183 [2021-10-16 01:55:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:21,824 INFO L470 AbstractCegarLoop]: Abstraction has 1135 states and 1575 transitions. [2021-10-16 01:55:21,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1575 transitions. [2021-10-16 01:55:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-16 01:55:21,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:21,829 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:21,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:22,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:22,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:22,233 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 301652121, now seen corresponding path program 1 times [2021-10-16 01:55:22,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:22,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085245484] [2021-10-16 01:55:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:22,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:22,235 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:22,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 01:55:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:22,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:22,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 237 proven. 25 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-10-16 01:55:23,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 237 proven. 25 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-10-16 01:55:23,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:23,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085245484] [2021-10-16 01:55:23,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085245484] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:23,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1906044362] [2021-10-16 01:55:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:23,915 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:23,916 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:23,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-16 01:55:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:25,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:25,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-16 01:55:25,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-16 01:55:25,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1906044362] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:25,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:25,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:25,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974206725] [2021-10-16 01:55:25,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:25,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:25,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:25,777 INFO L87 Difference]: Start difference. First operand 1135 states and 1575 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:26,023 INFO L93 Difference]: Finished difference Result 2419 states and 3415 transitions. [2021-10-16 01:55:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:26,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2021-10-16 01:55:26,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:26,032 INFO L225 Difference]: With dead ends: 2419 [2021-10-16 01:55:26,032 INFO L226 Difference]: Without dead ends: 1321 [2021-10-16 01:55:26,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-10-16 01:55:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1290. [2021-10-16 01:55:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 1.3576415826221877) internal successors, (1750), 1289 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:26,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1750 transitions. [2021-10-16 01:55:26,092 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1750 transitions. Word has length 184 [2021-10-16 01:55:26,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:26,093 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 1750 transitions. [2021-10-16 01:55:26,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:26,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1750 transitions. [2021-10-16 01:55:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-16 01:55:26,098 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:26,098 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:26,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:26,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:26,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:26,503 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:26,503 INFO L82 PathProgramCache]: Analyzing trace with hash -390571940, now seen corresponding path program 1 times [2021-10-16 01:55:26,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:26,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526098986] [2021-10-16 01:55:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:26,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:26,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:26,504 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:26,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 01:55:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:27,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:27,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:27,832 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 299 proven. 25 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-16 01:55:27,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 299 proven. 25 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-16 01:55:28,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:28,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526098986] [2021-10-16 01:55:28,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526098986] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:28,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [939658802] [2021-10-16 01:55:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:28,437 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:28,438 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:28,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-16 01:55:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:29,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:29,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-16 01:55:30,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-16 01:55:30,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [939658802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:30,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:30,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:30,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156252795] [2021-10-16 01:55:30,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:30,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:30,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:30,720 INFO L87 Difference]: Start difference. First operand 1290 states and 1750 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:30,825 INFO L93 Difference]: Finished difference Result 4899 states and 6678 transitions. [2021-10-16 01:55:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-10-16 01:55:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:30,846 INFO L225 Difference]: With dead ends: 4899 [2021-10-16 01:55:30,846 INFO L226 Difference]: Without dead ends: 3646 [2021-10-16 01:55:30,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 890 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.7ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2021-10-16 01:55:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3642. [2021-10-16 01:55:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 1.3622631145289756) internal successors, (4960), 3641 states have internal predecessors, (4960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 4960 transitions. [2021-10-16 01:55:31,034 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 4960 transitions. Word has length 225 [2021-10-16 01:55:31,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:31,034 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 4960 transitions. [2021-10-16 01:55:31,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 4960 transitions. [2021-10-16 01:55:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-16 01:55:31,042 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:31,042 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:31,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:31,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:31,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:31,455 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:31,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1606725666, now seen corresponding path program 1 times [2021-10-16 01:55:31,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:31,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970140698] [2021-10-16 01:55:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:31,457 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:31,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:31,458 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:31,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-16 01:55:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:32,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:32,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 299 proven. 25 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-16 01:55:33,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 299 proven. 25 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-16 01:55:33,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:33,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970140698] [2021-10-16 01:55:33,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970140698] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:33,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1130211830] [2021-10-16 01:55:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:33,743 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:33,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:33,749 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:33,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-10-16 01:55:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:35,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:35,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-10-16 01:55:35,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-10-16 01:55:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1130211830] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:36,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:36,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:36,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310211540] [2021-10-16 01:55:36,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:36,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:36,295 INFO L87 Difference]: Start difference. First operand 3642 states and 4960 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:36,581 INFO L93 Difference]: Finished difference Result 7817 states and 10846 transitions. [2021-10-16 01:55:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-10-16 01:55:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:36,605 INFO L225 Difference]: With dead ends: 7817 [2021-10-16 01:55:36,605 INFO L226 Difference]: Without dead ends: 4212 [2021-10-16 01:55:36,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 890 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:36,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2021-10-16 01:55:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 4182. [2021-10-16 01:55:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 1.3298254006218608) internal successors, (5560), 4181 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5560 transitions. [2021-10-16 01:55:36,767 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5560 transitions. Word has length 225 [2021-10-16 01:55:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:36,768 INFO L470 AbstractCegarLoop]: Abstraction has 4182 states and 5560 transitions. [2021-10-16 01:55:36,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5560 transitions. [2021-10-16 01:55:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-10-16 01:55:36,777 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:36,777 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:36,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:36,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:37,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:37,193 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -573362712, now seen corresponding path program 1 times [2021-10-16 01:55:37,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:37,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678807049] [2021-10-16 01:55:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:37,194 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:37,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:37,194 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:37,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-16 01:55:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:38,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:38,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 340 proven. 25 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-10-16 01:55:38,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:39,594 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 340 proven. 25 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-10-16 01:55:39,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:39,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678807049] [2021-10-16 01:55:39,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678807049] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:39,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011536170] [2021-10-16 01:55:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:39,595 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:39,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:39,597 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:39,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-16 01:55:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:41,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:41,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-10-16 01:55:41,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-10-16 01:55:42,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1011536170] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:42,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:42,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:42,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127213699] [2021-10-16 01:55:42,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:42,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:42,387 INFO L87 Difference]: Start difference. First operand 4182 states and 5560 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:42,635 INFO L93 Difference]: Finished difference Result 8642 states and 11536 transitions. [2021-10-16 01:55:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 249 [2021-10-16 01:55:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:42,660 INFO L225 Difference]: With dead ends: 8642 [2021-10-16 01:55:42,660 INFO L226 Difference]: Without dead ends: 4497 [2021-10-16 01:55:42,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2021-10-16 01:55:42,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 4347. [2021-10-16 01:55:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4346 states have (on average 1.3196042337781868) internal successors, (5735), 4346 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 5735 transitions. [2021-10-16 01:55:42,840 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 5735 transitions. Word has length 249 [2021-10-16 01:55:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:42,841 INFO L470 AbstractCegarLoop]: Abstraction has 4347 states and 5735 transitions. [2021-10-16 01:55:42,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 5735 transitions. [2021-10-16 01:55:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-10-16 01:55:42,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:42,853 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:42,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:43,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-16 01:55:43,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:43,260 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:43,260 INFO L82 PathProgramCache]: Analyzing trace with hash 808491776, now seen corresponding path program 1 times [2021-10-16 01:55:43,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:43,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478881299] [2021-10-16 01:55:43,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:43,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:43,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:43,262 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:43,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-16 01:55:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:44,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:44,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 343 proven. 25 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-10-16 01:55:45,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 343 proven. 25 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-10-16 01:55:45,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:45,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478881299] [2021-10-16 01:55:45,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478881299] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:45,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1000279923] [2021-10-16 01:55:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:45,805 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:45,806 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:45,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-16 01:55:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:47,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:47,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-10-16 01:55:48,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-10-16 01:55:48,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1000279923] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:48,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:48,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:55:48,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099738560] [2021-10-16 01:55:48,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:55:48,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:55:48,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:48,856 INFO L87 Difference]: Start difference. First operand 4347 states and 5735 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:49,118 INFO L93 Difference]: Finished difference Result 9362 states and 12561 transitions. [2021-10-16 01:55:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:55:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 261 [2021-10-16 01:55:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:49,147 INFO L225 Difference]: With dead ends: 9362 [2021-10-16 01:55:49,147 INFO L226 Difference]: Without dead ends: 5052 [2021-10-16 01:55:49,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1034 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.2ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:55:49,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5052 states. [2021-10-16 01:55:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5052 to 4902. [2021-10-16 01:55:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 4901 states have (on average 1.295653948173842) internal successors, (6350), 4901 states have internal predecessors, (6350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6350 transitions. [2021-10-16 01:55:49,317 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6350 transitions. Word has length 261 [2021-10-16 01:55:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:49,317 INFO L470 AbstractCegarLoop]: Abstraction has 4902 states and 6350 transitions. [2021-10-16 01:55:49,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:49,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6350 transitions. [2021-10-16 01:55:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-16 01:55:49,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:49,329 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:49,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:49,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-10-16 01:55:49,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:49,736 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:49,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1178275335, now seen corresponding path program 1 times [2021-10-16 01:55:49,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:49,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778447773] [2021-10-16 01:55:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:49,737 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:49,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:49,738 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:49,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-16 01:55:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:51,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:51,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 385 proven. 25 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2021-10-16 01:55:51,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 385 proven. 25 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2021-10-16 01:55:52,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:55:52,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778447773] [2021-10-16 01:55:52,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778447773] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:55:52,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1383387505] [2021-10-16 01:55:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:52,653 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:55:52,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:55:52,653 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:55:52,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2021-10-16 01:55:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:55:55,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-10-16 01:55:55,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:55:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-10-16 01:55:56,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1383387505] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:55:56,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:55:56,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 01:55:56,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378176618] [2021-10-16 01:55:56,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:55:56,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:55:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:55:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:55:56,200 INFO L87 Difference]: Start difference. First operand 4902 states and 6350 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:55:56,413 INFO L93 Difference]: Finished difference Result 14616 states and 18928 transitions. [2021-10-16 01:55:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:55:56,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2021-10-16 01:55:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:55:56,462 INFO L225 Difference]: With dead ends: 14616 [2021-10-16 01:55:56,462 INFO L226 Difference]: Without dead ends: 9751 [2021-10-16 01:55:56,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:55:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2021-10-16 01:55:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 9749. [2021-10-16 01:55:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9749 states, 9748 states have (on average 1.2909314731226917) internal successors, (12584), 9748 states have internal predecessors, (12584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:56,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9749 states to 9749 states and 12584 transitions. [2021-10-16 01:55:56,763 INFO L78 Accepts]: Start accepts. Automaton has 9749 states and 12584 transitions. Word has length 298 [2021-10-16 01:55:56,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:55:56,764 INFO L470 AbstractCegarLoop]: Abstraction has 9749 states and 12584 transitions. [2021-10-16 01:55:56,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:55:56,765 INFO L276 IsEmpty]: Start isEmpty. Operand 9749 states and 12584 transitions. [2021-10-16 01:55:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-16 01:55:56,782 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:55:56,783 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:55:56,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2021-10-16 01:55:57,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-10-16 01:55:57,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:55:57,191 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:55:57,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:55:57,191 INFO L82 PathProgramCache]: Analyzing trace with hash -627162999, now seen corresponding path program 1 times [2021-10-16 01:55:57,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:55:57,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709444145] [2021-10-16 01:55:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:55:57,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:55:57,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:55:57,193 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:55:57,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-16 01:55:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:55:59,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:55:59,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:55:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 385 proven. 25 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2021-10-16 01:55:59,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 385 proven. 25 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2021-10-16 01:56:00,353 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:56:00,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709444145] [2021-10-16 01:56:00,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709444145] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:00,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1897571643] [2021-10-16 01:56:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:00,354 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:00,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:56:00,354 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:56:00,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-10-16 01:56:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:03,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:56:03,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-10-16 01:56:03,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-10-16 01:56:04,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1897571643] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:56:04,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:56:04,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 7 [2021-10-16 01:56:04,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710293784] [2021-10-16 01:56:04,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 01:56:04,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:56:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 01:56:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:56:04,535 INFO L87 Difference]: Start difference. First operand 9749 states and 12584 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:04,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:56:04,696 INFO L93 Difference]: Finished difference Result 14586 states and 18799 transitions. [2021-10-16 01:56:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:56:04,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2021-10-16 01:56:04,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:56:04,716 INFO L225 Difference]: With dead ends: 14586 [2021-10-16 01:56:04,716 INFO L226 Difference]: Without dead ends: 9751 [2021-10-16 01:56:04,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.5ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 01:56:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2021-10-16 01:56:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 9749. [2021-10-16 01:56:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9749 states, 9748 states have (on average 1.2866228970045137) internal successors, (12542), 9748 states have internal predecessors, (12542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9749 states to 9749 states and 12542 transitions. [2021-10-16 01:56:05,018 INFO L78 Accepts]: Start accepts. Automaton has 9749 states and 12542 transitions. Word has length 298 [2021-10-16 01:56:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:56:05,019 INFO L470 AbstractCegarLoop]: Abstraction has 9749 states and 12542 transitions. [2021-10-16 01:56:05,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:05,019 INFO L276 IsEmpty]: Start isEmpty. Operand 9749 states and 12542 transitions. [2021-10-16 01:56:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-16 01:56:05,035 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:56:05,035 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:56:05,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-16 01:56:05,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2021-10-16 01:56:05,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:05,449 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:56:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:56:05,449 INFO L82 PathProgramCache]: Analyzing trace with hash 425310349, now seen corresponding path program 1 times [2021-10-16 01:56:05,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:56:05,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489795887] [2021-10-16 01:56:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:05,450 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:56:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:56:05,451 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:56:05,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-16 01:56:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:07,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:56:07,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-16 01:56:08,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-16 01:56:08,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:56:08,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489795887] [2021-10-16 01:56:08,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489795887] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:56:08,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:56:08,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 01:56:08,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979095236] [2021-10-16 01:56:08,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:56:08,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:56:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:56:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:56:08,604 INFO L87 Difference]: Start difference. First operand 9749 states and 12542 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:09,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:56:09,012 INFO L93 Difference]: Finished difference Result 20917 states and 27414 transitions. [2021-10-16 01:56:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:56:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2021-10-16 01:56:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:56:09,033 INFO L225 Difference]: With dead ends: 20917 [2021-10-16 01:56:09,034 INFO L226 Difference]: Without dead ends: 11234 [2021-10-16 01:56:09,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:56:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2021-10-16 01:56:09,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 10964. [2021-10-16 01:56:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10964 states, 10963 states have (on average 1.2658031560704186) internal successors, (13877), 10963 states have internal predecessors, (13877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10964 states to 10964 states and 13877 transitions. [2021-10-16 01:56:09,339 INFO L78 Accepts]: Start accepts. Automaton has 10964 states and 13877 transitions. Word has length 298 [2021-10-16 01:56:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:56:09,341 INFO L470 AbstractCegarLoop]: Abstraction has 10964 states and 13877 transitions. [2021-10-16 01:56:09,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10964 states and 13877 transitions. [2021-10-16 01:56:09,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-10-16 01:56:09,358 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:56:09,358 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:56:09,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-16 01:56:09,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:56:09,572 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:56:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:56:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash 2116106570, now seen corresponding path program 1 times [2021-10-16 01:56:09,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:56:09,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604747797] [2021-10-16 01:56:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:09,574 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:56:09,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:56:09,575 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:56:09,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-16 01:56:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:11,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:11,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 388 proven. 25 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2021-10-16 01:56:12,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 388 proven. 25 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2021-10-16 01:56:13,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:56:13,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604747797] [2021-10-16 01:56:13,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604747797] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:13,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1187055191] [2021-10-16 01:56:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:13,080 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:13,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:56:13,081 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:56:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2021-10-16 01:56:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:16,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 01:56:16,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-16 01:56:17,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-10-16 01:56:17,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1187055191] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:56:17,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 01:56:17,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 01:56:17,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731719474] [2021-10-16 01:56:17,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:56:17,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:56:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:56:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:56:17,491 INFO L87 Difference]: Start difference. First operand 10964 states and 13877 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:56:17,910 INFO L93 Difference]: Finished difference Result 23332 states and 30039 transitions. [2021-10-16 01:56:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 01:56:17,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-10-16 01:56:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:56:17,933 INFO L225 Difference]: With dead ends: 23332 [2021-10-16 01:56:17,934 INFO L226 Difference]: Without dead ends: 11129 [2021-10-16 01:56:17,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1196 GetRequests, 1190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 01:56:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2021-10-16 01:56:18,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 10859. [2021-10-16 01:56:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10859 states, 10858 states have (on average 1.2614662000368393) internal successors, (13697), 10858 states have internal predecessors, (13697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10859 states to 10859 states and 13697 transitions. [2021-10-16 01:56:18,272 INFO L78 Accepts]: Start accepts. Automaton has 10859 states and 13697 transitions. Word has length 300 [2021-10-16 01:56:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:56:18,273 INFO L470 AbstractCegarLoop]: Abstraction has 10859 states and 13697 transitions. [2021-10-16 01:56:18,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 10859 states and 13697 transitions. [2021-10-16 01:56:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-16 01:56:18,286 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:56:18,287 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:56:18,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-16 01:56:18,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2021-10-16 01:56:18,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:18,706 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:56:18,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:56:18,706 INFO L82 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2021-10-16 01:56:18,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:56:18,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079281936] [2021-10-16 01:56:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:18,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:56:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:56:18,708 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:56:18,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-16 01:56:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:21,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:21,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:21,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:22,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:56:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079281936] [2021-10-16 01:56:22,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079281936] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:22,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1433133480] [2021-10-16 01:56:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:22,308 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:22,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:56:22,309 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:56:22,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-10-16 01:56:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:25,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:25,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:26,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:27,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1433133480] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:27,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192873895] [2021-10-16 01:56:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:27,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:56:27,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:56:27,045 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:56:27,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-16 01:56:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:30,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:30,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:31,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:31,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192873895] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:31,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 01:56:31,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 01:56:31,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153923805] [2021-10-16 01:56:31,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 01:56:31,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:56:31,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 01:56:31,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 01:56:31,556 INFO L87 Difference]: Start difference. First operand 10859 states and 13697 transitions. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:56:32,117 INFO L93 Difference]: Finished difference Result 20465 states and 25867 transitions. [2021-10-16 01:56:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 01:56:32,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-10-16 01:56:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:56:32,126 INFO L225 Difference]: With dead ends: 20465 [2021-10-16 01:56:32,127 INFO L226 Difference]: Without dead ends: 7347 [2021-10-16 01:56:32,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1849 GetRequests, 1841 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 01:56:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2021-10-16 01:56:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 5945. [2021-10-16 01:56:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 5944 states have (on average 1.2851615074024225) internal successors, (7639), 5944 states have internal predecessors, (7639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 7639 transitions. [2021-10-16 01:56:32,364 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 7639 transitions. Word has length 308 [2021-10-16 01:56:32,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:56:32,365 INFO L470 AbstractCegarLoop]: Abstraction has 5945 states and 7639 transitions. [2021-10-16 01:56:32,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 7639 transitions. [2021-10-16 01:56:32,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-16 01:56:32,373 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:56:32,374 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 01:56:32,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-10-16 01:56:32,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-16 01:56:32,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2021-10-16 01:56:32,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:32,995 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:56:32,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:56:32,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1448829880, now seen corresponding path program 1 times [2021-10-16 01:56:32,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:56:32,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686514469] [2021-10-16 01:56:32,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:32,996 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:56:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:56:32,997 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:56:32,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-16 01:56:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:35,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:35,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 355 proven. 25 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-10-16 01:56:36,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 355 proven. 25 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-10-16 01:56:37,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:56:37,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686514469] [2021-10-16 01:56:37,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686514469] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:37,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [937947151] [2021-10-16 01:56:37,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:37,043 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 01:56:37,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 01:56:37,044 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 01:56:37,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-10-16 01:56:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:41,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:41,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 13 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:41,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 13 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:42,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [937947151] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:42,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411005717] [2021-10-16 01:56:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:56:42,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 01:56:42,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:56:42,476 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 01:56:42,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-16 01:56:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:56:46,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 01:56:46,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:56:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 13 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:46,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:56:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 13 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-10-16 01:56:47,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411005717] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 01:56:47,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 01:56:47,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 10 [2021-10-16 01:56:47,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390038049] [2021-10-16 01:56:47,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 01:56:47,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:56:47,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 01:56:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-16 01:56:47,381 INFO L87 Difference]: Start difference. First operand 5945 states and 7639 transitions. Second operand has 10 states, 10 states have (on average 36.9) internal successors, (369), 10 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:47,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:56:47,931 INFO L93 Difference]: Finished difference Result 6160 states and 7942 transitions. [2021-10-16 01:56:47,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 01:56:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 36.9) internal successors, (369), 10 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-10-16 01:56:47,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:56:47,933 INFO L225 Difference]: With dead ends: 6160 [2021-10-16 01:56:47,933 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 01:56:47,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1864 GetRequests, 1851 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 104.6ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-10-16 01:56:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 01:56:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 01:56:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 01:56:47,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2021-10-16 01:56:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:56:47,937 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 01:56:47,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.9) internal successors, (369), 10 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 01:56:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 01:56:47,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 01:56:47,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:56:47,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2021-10-16 01:56:48,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-16 01:56:48,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-10-16 01:56:48,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:56:48,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 01:56:48,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:48,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:49,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:56:52,202 INFO L857 garLoopResultBuilder]: For program point L465(lines 465 471) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L860 garLoopResultBuilder]: At program point L201(lines 200 541) the Hoare annotation is: true [2021-10-16 01:56:52,203 INFO L853 garLoopResultBuilder]: At program point L135(lines 131 564) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse9) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 240) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L860 garLoopResultBuilder]: At program point L632(lines 624 634) the Hoare annotation is: true [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 551) no Hoare annotation was computed. [2021-10-16 01:56:52,203 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 562) no Hoare annotation was computed. [2021-10-16 01:56:52,204 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 573) no Hoare annotation was computed. [2021-10-16 01:56:52,204 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2021-10-16 01:56:52,204 INFO L857 garLoopResultBuilder]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,204 INFO L860 garLoopResultBuilder]: At program point L204(lines 203 540) the Hoare annotation is: true [2021-10-16 01:56:52,204 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 552) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 01:56:52,204 INFO L853 garLoopResultBuilder]: At program point L105(lines 104 573) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse2 .cse0 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse1))) [2021-10-16 01:56:52,204 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-10-16 01:56:52,204 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 409) no Hoare annotation was computed. [2021-10-16 01:56:52,205 INFO L857 garLoopResultBuilder]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2021-10-16 01:56:52,205 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 550) no Hoare annotation was computed. [2021-10-16 01:56:52,205 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 561) no Hoare annotation was computed. [2021-10-16 01:56:52,205 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 572) no Hoare annotation was computed. [2021-10-16 01:56:52,205 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 562) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse9) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-16 01:56:52,206 INFO L853 garLoopResultBuilder]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (.cse10 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse6 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse7 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (.cse4 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse5 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse1 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 (exists ((v_ULTIMATE.start_ssl3_connect_~s__state~0_364 (_ BitVec 32))) (= ULTIMATE.start_ssl3_connect_~s__state~0 (bvor v_ULTIMATE.start_ssl3_connect_~s__state~0_364 (_ bv208 32))))) (and .cse0 .cse6 .cse7) (and .cse0 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse1) (and .cse4 .cse0) (and .cse0 .cse1 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (and .cse4 .cse5 .cse8) (and .cse9 .cse10 .cse5) (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32)) .cse1) (and .cse0 .cse8 .cse1) (and (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse0 .cse1) (and .cse9 .cse10 .cse0) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse4 .cse5 .cse3) (and .cse0 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32))) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32)) (and .cse0 .cse1 .cse11) (and .cse5 .cse6 .cse7) (and .cse4 .cse5 .cse11) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32)) .cse0 .cse1))) [2021-10-16 01:56:52,206 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 84) no Hoare annotation was computed. [2021-10-16 01:56:52,206 INFO L860 garLoopResultBuilder]: At program point L605(lines 100 606) the Hoare annotation is: true [2021-10-16 01:56:52,206 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 549) no Hoare annotation was computed. [2021-10-16 01:56:52,206 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 560) no Hoare annotation was computed. [2021-10-16 01:56:52,206 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 571) no Hoare annotation was computed. [2021-10-16 01:56:52,207 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2021-10-16 01:56:52,207 INFO L857 garLoopResultBuilder]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2021-10-16 01:56:52,207 INFO L853 garLoopResultBuilder]: At program point L210(lines 107 572) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse6 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse5) (and .cse0 .cse6 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse7 .cse2 .cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse4 .cse8 .cse9 .cse5) (and .cse0 .cse6 .cse1 .cse7 .cse2 .cse3 .cse4 .cse8 .cse9 .cse5))) [2021-10-16 01:56:52,207 INFO L853 garLoopResultBuilder]: At program point L177(lines 173 550) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 01:56:52,207 INFO L857 garLoopResultBuilder]: For program point L574(lines 574 602) no Hoare annotation was computed. [2021-10-16 01:56:52,207 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 83) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L575(lines 575 599) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 349) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 282) no Hoare annotation was computed. [2021-10-16 01:56:52,208 INFO L857 garLoopResultBuilder]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 548) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 559) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 570) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L609(lines 609 613) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 585) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2021-10-16 01:56:52,209 INFO L857 garLoopResultBuilder]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2021-10-16 01:56:52,210 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 560) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 01:56:52,210 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 582) no Hoare annotation was computed. [2021-10-16 01:56:52,210 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 451) no Hoare annotation was computed. [2021-10-16 01:56:52,210 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2021-10-16 01:56:52,210 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 547) no Hoare annotation was computed. [2021-10-16 01:56:52,210 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 558) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 569) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 484) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 319) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2021-10-16 01:56:52,211 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 548) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 .cse6 .cse7 .cse8) (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse5 .cse6 .cse7 .cse8))) [2021-10-16 01:56:52,211 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 256) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 546) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 557) no Hoare annotation was computed. [2021-10-16 01:56:52,212 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 568) no Hoare annotation was computed. [2021-10-16 01:56:52,213 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2021-10-16 01:56:52,213 INFO L857 garLoopResultBuilder]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2021-10-16 01:56:52,213 INFO L853 garLoopResultBuilder]: At program point L153(lines 149 558) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 01:56:52,213 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-16 01:56:52,213 INFO L857 garLoopResultBuilder]: For program point L485(lines 485 489) no Hoare annotation was computed. [2021-10-16 01:56:52,213 INFO L857 garLoopResultBuilder]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 295) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 545) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 556) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 567) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 358) no Hoare annotation was computed. [2021-10-16 01:56:52,214 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 546) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 .cse6 .cse7 .cse8) (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse5 .cse6 .cse7 .cse8))) [2021-10-16 01:56:52,215 INFO L853 garLoopResultBuilder]: At program point L123(lines 119 568) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse9) (and (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8 .cse9) (and .cse0 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 .cse8 .cse9))) [2021-10-16 01:56:52,215 INFO L853 garLoopResultBuilder]: At program point L355(lines 68 622) the Hoare annotation is: false [2021-10-16 01:56:52,215 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 01:56:52,215 INFO L860 garLoopResultBuilder]: At program point L620(lines 68 622) the Hoare annotation is: true [2021-10-16 01:56:52,215 INFO L857 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-10-16 01:56:52,215 INFO L857 garLoopResultBuilder]: For program point L521(lines 521 525) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 294) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 544) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 555) no Hoare annotation was computed. [2021-10-16 01:56:52,216 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 566) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L860 garLoopResultBuilder]: At program point L621(lines 10 623) the Hoare annotation is: true [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point L456(lines 456 460) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 244) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 543) no Hoare annotation was computed. [2021-10-16 01:56:52,217 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 554) no Hoare annotation was computed. [2021-10-16 01:56:52,218 INFO L857 garLoopResultBuilder]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,218 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 565) no Hoare annotation was computed. [2021-10-16 01:56:52,218 INFO L853 garLoopResultBuilder]: At program point L195(lines 191 544) the Hoare annotation is: (or (and (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (exists ((v_ULTIMATE.start_ssl3_connect_~s__state~0_364 (_ BitVec 32))) (= ULTIMATE.start_ssl3_connect_~s__state~0 (bvor v_ULTIMATE.start_ssl3_connect_~s__state~0_364 (_ bv208 32))))) (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))))) [2021-10-16 01:56:52,218 INFO L853 garLoopResultBuilder]: At program point L129(lines 125 566) the Hoare annotation is: (let ((.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32)))) (.cse6 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse3 .cse5 .cse7 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse9 .cse1 .cse2 .cse3 .cse5 .cse7 .cse8))) [2021-10-16 01:56:52,218 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 431) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 542) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 553) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 564) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 01:56:52,219 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 616) no Hoare annotation was computed. [2021-10-16 01:56:52,220 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-10-16 01:56:52,220 INFO L853 garLoopResultBuilder]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32)) .cse1) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse2 (= (_ bv208 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse1) (and .cse0 (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1) (and .cse2 .cse0 .cse1))) [2021-10-16 01:56:52,220 INFO L853 garLoopResultBuilder]: At program point L165(lines 155 556) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4385 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32)))) [2021-10-16 01:56:52,220 INFO L857 garLoopResultBuilder]: For program point L496(lines 496 501) no Hoare annotation was computed. [2021-10-16 01:56:52,220 INFO L857 garLoopResultBuilder]: For program point L463(lines 463 474) no Hoare annotation was computed. [2021-10-16 01:56:52,220 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 269) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 402) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 336) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L200(lines 200 541) no Hoare annotation was computed. [2021-10-16 01:56:52,221 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 552) no Hoare annotation was computed. [2021-10-16 01:56:52,222 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 563) no Hoare annotation was computed. [2021-10-16 01:56:52,222 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2021-10-16 01:56:52,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 01:56:52,244 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:56:52 BoogieIcfgContainer [2021-10-16 01:56:52,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 01:56:52,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 01:56:52,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 01:56:52,257 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 01:56:52,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:55:02" (3/4) ... [2021-10-16 01:56:52,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 01:56:52,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 01:56:52,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 01:56:52,278 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 01:56:52,279 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 01:56:52,306 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && (\exists v_ULTIMATE.start_ssl3_connect_~s__state~0_364 : bv32 :: s__state == ~bvor32(v_ULTIMATE.start_ssl3_connect_~s__state~0_364, 208bv32)))) || ((s__hit == 0bv32 && 1bv32 == blastFlag) && s__state == 4384bv32)) || ((s__hit == 0bv32 && 4432bv32 == s__state) && !(5bv32 == blastFlag))) || (2bv32 == blastFlag && s__hit == 0bv32)) || ((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 4480bv32 == s__state)) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && s__state == 4528bv32)) || ((s__state == 4368bv32 && 0bv32 == blastFlag) && 208bv32 == ag_Y)) || ((s__hit == 0bv32 && s__state == 4448bv32) && !(5bv32 == blastFlag))) || ((s__hit == 0bv32 && s__state == 4528bv32) && !(5bv32 == blastFlag))) || ((4464bv32 == s__state && s__hit == 0bv32) && !(5bv32 == blastFlag))) || ((s__state == 4368bv32 && 0bv32 == blastFlag) && s__hit == 0bv32)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && 208bv32 == ag_Y) && s__state == 4352bv32)) || (s__hit == 0bv32 && 3bv32 == blastFlag)) || (((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4560bv32)) || s__state == 3bv32) || ((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__state == 4512bv32)) || ((208bv32 == ag_Y && 1bv32 == blastFlag) && s__state == 4384bv32)) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && s__state == 4512bv32)) || ((s__state == 4496bv32 && s__hit == 0bv32) && !(5bv32 == blastFlag)) [2021-10-16 01:56:52,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2bv32 == blastFlag && 208bv32 == ag_Y) && (\exists v_ULTIMATE.start_ssl3_connect_~s__state~0_364 : bv32 :: s__state == ~bvor32(v_ULTIMATE.start_ssl3_connect_~s__state~0_364, 208bv32))) || (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) [2021-10-16 01:56:52,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 01:56:52,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 01:56:52,362 INFO L168 Benchmark]: Toolchain (without parser) took 111239.17 ms. Allocated memory was 71.3 MB in the beginning and 901.8 MB in the end (delta: 830.5 MB). Free memory was 53.4 MB in the beginning and 388.7 MB in the end (delta: -335.2 MB). Peak memory consumption was 495.0 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,363 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:56:52,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.74 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 53.1 MB in the end (delta: 175.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.28 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 50.4 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:56:52,364 INFO L168 Benchmark]: Boogie Preprocessor took 49.55 ms. Allocated memory is still 71.3 MB. Free memory was 50.4 MB in the beginning and 48.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,364 INFO L168 Benchmark]: RCFGBuilder took 1045.45 ms. Allocated memory was 71.3 MB in the beginning and 107.0 MB in the end (delta: 35.7 MB). Free memory was 48.3 MB in the beginning and 81.3 MB in the end (delta: -33.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,365 INFO L168 Benchmark]: TraceAbstraction took 109474.38 ms. Allocated memory was 107.0 MB in the beginning and 901.8 MB in the end (delta: 794.8 MB). Free memory was 80.8 MB in the beginning and 398.1 MB in the end (delta: -317.3 MB). Peak memory consumption was 478.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,365 INFO L168 Benchmark]: Witness Printer took 104.14 ms. Allocated memory is still 901.8 MB. Free memory was 398.1 MB in the beginning and 388.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:56:52,367 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 71.3 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 469.74 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 53.1 MB in the end (delta: 175.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.28 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 50.4 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.55 ms. Allocated memory is still 71.3 MB. Free memory was 50.4 MB in the beginning and 48.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1045.45 ms. Allocated memory was 71.3 MB in the beginning and 107.0 MB in the end (delta: 35.7 MB). Free memory was 48.3 MB in the beginning and 81.3 MB in the end (delta: -33.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 109474.38 ms. Allocated memory was 107.0 MB in the beginning and 901.8 MB in the end (delta: 794.8 MB). Free memory was 80.8 MB in the beginning and 398.1 MB in the end (delta: -317.3 MB). Peak memory consumption was 478.4 MB. Max. memory is 16.1 GB. * Witness Printer took 104.14 ms. Allocated memory is still 901.8 MB. Free memory was 398.1 MB in the beginning and 388.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 616]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 109362.6ms, OverallIterations: 21, TraceHistogramMax: 14, EmptinessCheckTime: 160.6ms, AutomataDifference: 5424.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3657.1ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3693 SDtfs, 3243 SDslu, 3464 SDs, 0 SdLazy, 3102 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2455.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15371 GetRequests, 15267 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 582.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10964occurred in iteration=18, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2455.2ms AutomataMinimizationTime, 21 MinimizatonAttempts, 2413 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 217 NumberOfFragments, 1380 HoareAnnotationTreeSize, 23 FomulaSimplifications, 7732 FormulaSimplificationTreeSizeReduction, 637.2ms HoareSimplificationTime, 23 FomulaSimplificationsInter, 2541 FormulaSimplificationTreeSizeReductionInter, 3006.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 704.1ms SsaConstructionTime, 2645.4ms SatisfiabilityAnalysisTime, 34112.1ms InterpolantComputationTime, 7715 NumberOfCodeBlocks, 7715 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 15354 ConstructedInterpolants, 774 QuantifiedInterpolants, 25503 SizeOfPredicates, 47 NumberOfNonLiveVariables, 10934 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 76 InterpolantComputations, 38 PerfectInterpolantSequences, 45642/46466 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((((s__state == 12292bv32 && s__hit == 0bv32) && 3bv32 == blastFlag) || ((0bv32 == blastFlag && s__state == 12292bv32) && 208bv32 == ag_Y)) || ((s__state == 12292bv32 && 2bv32 == blastFlag) && s__hit == 0bv32)) || ((0bv32 == blastFlag && s__state == 12292bv32) && s__hit == 0bv32) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && 208bv32 == ag_Y) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && 208bv32 == ag_Y) && s__state == 4352bv32)) || ((s__hit == 0bv32 && 3bv32 == blastFlag) && s__state == 4352bv32)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4352bv32) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && 3bv32 == blastFlag) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((((0bv32 == blastFlag && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((s__hit == 0bv32 && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 16384bv32)) && 3bv32 == blastFlag) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || ((((((((2bv32 == blastFlag && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || ((((((((((0bv32 == blastFlag && 208bv32 == ag_Y) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 191]: Loop Invariant [2021-10-16 01:56:52,379 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] Derived loop invariant: ((2bv32 == blastFlag && 208bv32 == ag_Y) && (\exists v_ULTIMATE.start_ssl3_connect_~s__state~0_364 : bv32 :: s__state == ~bvor32(v_ULTIMATE.start_ssl3_connect_~s__state~0_364, 208bv32))) || (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 4384bv32)) || ((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && 3bv32 == blastFlag) && !(s__state == 4384bv32))) || ((((((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && 208bv32 == ag_Y) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32))) || (((((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 101]: Loop Invariant [2021-10-16 01:56:52,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] [2021-10-16 01:56:52,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ssl3_connect_~s__state~0_364,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && (\exists v_ULTIMATE.start_ssl3_connect_~s__state~0_364 : bv32 :: s__state == ~bvor32(v_ULTIMATE.start_ssl3_connect_~s__state~0_364, 208bv32)))) || ((s__hit == 0bv32 && 1bv32 == blastFlag) && s__state == 4384bv32)) || ((s__hit == 0bv32 && 4432bv32 == s__state) && !(5bv32 == blastFlag))) || (2bv32 == blastFlag && s__hit == 0bv32)) || ((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 4480bv32 == s__state)) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && s__state == 4528bv32)) || ((s__state == 4368bv32 && 0bv32 == blastFlag) && 208bv32 == ag_Y)) || ((s__hit == 0bv32 && s__state == 4448bv32) && !(5bv32 == blastFlag))) || ((s__hit == 0bv32 && s__state == 4528bv32) && !(5bv32 == blastFlag))) || ((4464bv32 == s__state && s__hit == 0bv32) && !(5bv32 == blastFlag))) || ((s__state == 4368bv32 && 0bv32 == blastFlag) && s__hit == 0bv32)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && 208bv32 == ag_Y) && s__state == 4352bv32)) || (s__hit == 0bv32 && 3bv32 == blastFlag)) || (((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4560bv32)) || s__state == 3bv32) || ((s__hit == 0bv32 && !(5bv32 == blastFlag)) && s__state == 4512bv32)) || ((208bv32 == ag_Y && 1bv32 == blastFlag) && s__state == 4384bv32)) || ((2bv32 == blastFlag && 208bv32 == ag_Y) && s__state == 4512bv32)) || ((s__state == 4496bv32 && s__hit == 0bv32) && !(5bv32 == blastFlag)) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 208bv32 == ag_Y) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || ((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && 3bv32 == blastFlag) && !(s__state == 4099bv32))) || ((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && 3bv32 == blastFlag) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && 208bv32 == ag_Y) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) || ((((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32)) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4385bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && !(s__state == 4384bv32) RESULT: Ultimate proved your program to be correct! [2021-10-16 01:56:52,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f09d73fc-f455-49bf-b749-bcb3ce740827/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...