./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6109a1fac0fefb649a7f9112d9de6794b20b2eeab3ffcf65d90d2df873fff6ac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:39:36,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:39:36,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:39:36,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:39:36,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:39:36,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:39:36,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:39:36,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:39:36,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:39:36,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:39:36,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:39:36,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:39:36,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:39:36,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:39:36,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:39:36,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:39:36,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:39:36,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:39:36,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:39:36,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:39:36,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:39:36,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:39:36,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:39:36,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:39:36,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:39:36,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:39:36,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:39:36,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:39:36,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:39:36,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:39:36,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:39:36,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:39:36,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:39:36,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:39:36,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:39:36,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:39:36,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:39:36,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:39:36,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:39:36,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:39:36,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:39:36,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:39:37,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:39:37,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:39:37,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:39:37,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:39:37,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:39:37,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:39:37,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:39:37,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:39:37,038 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:39:37,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:39:37,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:39:37,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:39:37,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:39:37,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:39:37,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:39:37,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:39:37,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:39:37,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:39:37,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:39:37,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:39:37,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:39:37,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:37,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:39:37,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:39:37,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:39:37,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:39:37,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:39:37,043 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:39:37,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:39:37,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:39:37,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6109a1fac0fefb649a7f9112d9de6794b20b2eeab3ffcf65d90d2df873fff6ac [2022-11-02 20:39:37,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:39:37,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:39:37,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:39:37,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:39:37,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:39:37,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c [2022-11-02 20:39:37,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/03fdbcc13/96dd7243e7924125b1e64a86a9cb2a32/FLAG226cdd4f4 [2022-11-02 20:39:38,183 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:39:38,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c [2022-11-02 20:39:38,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/03fdbcc13/96dd7243e7924125b1e64a86a9cb2a32/FLAG226cdd4f4 [2022-11-02 20:39:38,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/03fdbcc13/96dd7243e7924125b1e64a86a9cb2a32 [2022-11-02 20:39:38,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:39:38,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:39:38,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:38,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:39:38,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:39:38,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:38" (1/1) ... [2022-11-02 20:39:38,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b6c0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:38, skipping insertion in model container [2022-11-02 20:39:38,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:39:38" (1/1) ... [2022-11-02 20:39:38,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:39:38,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:39:39,006 WARN L230 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_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c[1107,1120] [2022-11-02 20:39:40,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:40,449 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:39:40,461 WARN L230 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_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c[1107,1120] [2022-11-02 20:39:41,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:39:41,314 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:39:41,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41 WrapperNode [2022-11-02 20:39:41,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:39:41,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:41,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:39:41,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:39:41,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:41,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:43,002 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15928 [2022-11-02 20:39:43,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:39:43,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:39:43,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:39:43,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:39:43,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:43,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:43,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:43,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:39:44,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:39:44,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:39:44,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:39:44,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (1/1) ... [2022-11-02 20:39:44,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:39:44,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:44,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:39:44,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:39:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:39:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:39:46,661 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:39:46,663 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:41:45,285 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:41:45,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:41:45,305 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:41:45,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:45 BoogieIcfgContainer [2022-11-02 20:41:45,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:41:45,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:41:45,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:41:45,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:41:45,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:39:38" (1/3) ... [2022-11-02 20:41:45,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f6b51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:45, skipping insertion in model container [2022-11-02 20:41:45,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:39:41" (2/3) ... [2022-11-02 20:41:45,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f6b51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:45, skipping insertion in model container [2022-11-02 20:41:45,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:45" (3/3) ... [2022-11-02 20:41:45,324 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal174.c [2022-11-02 20:41:45,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:41:45,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:41:45,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:41:45,471 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b271261, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:41:45,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:41:45,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 1695 states, 1693 states have (on average 1.4997046662728883) internal successors, (2539), 1694 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:41:45,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:45,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:45,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash -332259343, now seen corresponding path program 1 times [2022-11-02 20:41:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:45,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744879410] [2022-11-02 20:41:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:46,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744879410] [2022-11-02 20:41:46,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744879410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:46,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:46,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307574923] [2022-11-02 20:41:46,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:46,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:41:46,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:46,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:41:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:41:46,685 INFO L87 Difference]: Start difference. First operand has 1695 states, 1693 states have (on average 1.4997046662728883) internal successors, (2539), 1694 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:48,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:41:51,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:41:54,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:41:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:55,161 INFO L93 Difference]: Finished difference Result 4087 states and 6128 transitions. [2022-11-02 20:41:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:41:55,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:41:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:55,187 INFO L225 Difference]: With dead ends: 4087 [2022-11-02 20:41:55,187 INFO L226 Difference]: Without dead ends: 2394 [2022-11-02 20:41:55,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:55,201 INFO L413 NwaCegarLoop]: 2515 mSDtfsCounter, 2099 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:55,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 7544 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-02 20:41:55,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2022-11-02 20:41:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 1693. [2022-11-02 20:41:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1692 states have (on average 1.49822695035461) internal successors, (2535), 1692 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2535 transitions. [2022-11-02 20:41:55,335 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2535 transitions. Word has length 9 [2022-11-02 20:41:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:55,336 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2535 transitions. [2022-11-02 20:41:55,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2535 transitions. [2022-11-02 20:41:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:41:55,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:55,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:55,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:41:55,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash -275001041, now seen corresponding path program 1 times [2022-11-02 20:41:55,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673600892] [2022-11-02 20:41:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:55,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:55,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:55,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673600892] [2022-11-02 20:41:55,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673600892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:55,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:55,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:41:55,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56952527] [2022-11-02 20:41:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:55,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:41:55,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:55,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:41:55,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:41:55,869 INFO L87 Difference]: Start difference. First operand 1693 states and 2535 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:57,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:41:58,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:01,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:03,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:04,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:42:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:04,330 INFO L93 Difference]: Finished difference Result 4083 states and 6115 transitions. [2022-11-02 20:42:04,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:42:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:42:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:04,339 INFO L225 Difference]: With dead ends: 4083 [2022-11-02 20:42:04,339 INFO L226 Difference]: Without dead ends: 2394 [2022-11-02 20:42:04,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:04,343 INFO L413 NwaCegarLoop]: 2515 mSDtfsCounter, 2093 mSDsluCounter, 5028 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 7543 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:04,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 7543 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-02 20:42:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2022-11-02 20:42:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 1695. [2022-11-02 20:42:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1694 states have (on average 1.4976387249114522) internal successors, (2537), 1694 states have internal predecessors, (2537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2537 transitions. [2022-11-02 20:42:04,386 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2537 transitions. Word has length 9 [2022-11-02 20:42:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:04,387 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2537 transitions. [2022-11-02 20:42:04,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2537 transitions. [2022-11-02 20:42:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:42:04,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:04,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:04,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:42:04,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash -274941459, now seen corresponding path program 1 times [2022-11-02 20:42:04,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:04,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219894256] [2022-11-02 20:42:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:04,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:42:04,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:42:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:42:05,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:42:05,071 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:42:05,072 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:42:05,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:42:05,078 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 20:42:05,081 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:42:05,135 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:42:05,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:42:05 BoogieIcfgContainer [2022-11-02 20:42:05,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:42:05,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:42:05,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:42:05,164 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:42:05,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:45" (3/4) ... [2022-11-02 20:42:05,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:42:05,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:42:05,179 INFO L158 Benchmark]: Toolchain (without parser) took 146767.73ms. Allocated memory was 138.4MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 102.2MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-02 20:42:05,180 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:42:05,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2899.37ms. Allocated memory was 138.4MB in the beginning and 343.9MB in the end (delta: 205.5MB). Free memory was 102.2MB in the beginning and 194.3MB in the end (delta: -92.0MB). Peak memory consumption was 196.3MB. Max. memory is 16.1GB. [2022-11-02 20:42:05,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 1701.62ms. Allocated memory was 343.9MB in the beginning and 939.5MB in the end (delta: 595.6MB). Free memory was 194.3MB in the beginning and 611.6MB in the end (delta: -417.4MB). Peak memory consumption was 185.6MB. Max. memory is 16.1GB. [2022-11-02 20:42:05,181 INFO L158 Benchmark]: Boogie Preprocessor took 1816.20ms. Allocated memory was 939.5MB in the beginning and 2.8GB in the end (delta: 1.9GB). Free memory was 611.6MB in the beginning and 2.4GB in the end (delta: -1.8GB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2022-11-02 20:42:05,182 INFO L158 Benchmark]: RCFGBuilder took 120473.39ms. Allocated memory was 2.8GB in the beginning and 5.5GB in the end (delta: 2.7GB). Free memory was 2.4GB in the beginning and 4.8GB in the end (delta: -2.4GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2022-11-02 20:42:05,182 INFO L158 Benchmark]: TraceAbstraction took 19851.09ms. Allocated memory is still 5.5GB. Free memory was 4.8GB in the beginning and 4.2GB in the end (delta: 621.8MB). Peak memory consumption was 622.9MB. Max. memory is 16.1GB. [2022-11-02 20:42:05,182 INFO L158 Benchmark]: Witness Printer took 15.11ms. Allocated memory is still 5.5GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:42:05,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2899.37ms. Allocated memory was 138.4MB in the beginning and 343.9MB in the end (delta: 205.5MB). Free memory was 102.2MB in the beginning and 194.3MB in the end (delta: -92.0MB). Peak memory consumption was 196.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1701.62ms. Allocated memory was 343.9MB in the beginning and 939.5MB in the end (delta: 595.6MB). Free memory was 194.3MB in the beginning and 611.6MB in the end (delta: -417.4MB). Peak memory consumption was 185.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1816.20ms. Allocated memory was 939.5MB in the beginning and 2.8GB in the end (delta: 1.9GB). Free memory was 611.6MB in the beginning and 2.4GB in the end (delta: -1.8GB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. * RCFGBuilder took 120473.39ms. Allocated memory was 2.8GB in the beginning and 5.5GB in the end (delta: 2.7GB). Free memory was 2.4GB in the beginning and 4.8GB in the end (delta: -2.4GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * TraceAbstraction took 19851.09ms. Allocated memory is still 5.5GB. Free memory was 4.8GB in the beginning and 4.2GB in the end (delta: 621.8MB). Peak memory consumption was 622.9MB. Max. memory is 16.1GB. * Witness Printer took 15.11ms. Allocated memory is still 5.5GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 491, overapproximation of bitwiseOr at line 489, overapproximation of bitwiseAnd at line 483. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 4); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (4 - 1); [L34] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 8); [L35] const SORT_9 msb_SORT_9 = (SORT_9)1 << (8 - 1); [L37] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L38] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L40] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 3); [L41] const SORT_27 msb_SORT_27 = (SORT_27)1 << (3 - 1); [L43] const SORT_34 mask_SORT_34 = (SORT_34)-1 >> (sizeof(SORT_34) * 8 - 5); [L44] const SORT_34 msb_SORT_34 = (SORT_34)1 << (5 - 1); [L46] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 6); [L47] const SORT_43 msb_SORT_43 = (SORT_43)1 << (6 - 1); [L49] const SORT_241 mask_SORT_241 = (SORT_241)-1 >> (sizeof(SORT_241) * 8 - 7); [L50] const SORT_241 msb_SORT_241 = (SORT_241)1 << (7 - 1); [L52] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 9); [L53] const SORT_244 msb_SORT_244 = (SORT_244)1 << (9 - 1); [L55] const SORT_246 mask_SORT_246 = (SORT_246)-1 >> (sizeof(SORT_246) * 8 - 10); [L56] const SORT_246 msb_SORT_246 = (SORT_246)1 << (10 - 1); [L58] const SORT_248 mask_SORT_248 = (SORT_248)-1 >> (sizeof(SORT_248) * 8 - 11); [L59] const SORT_248 msb_SORT_248 = (SORT_248)1 << (11 - 1); [L61] const SORT_250 mask_SORT_250 = (SORT_250)-1 >> (sizeof(SORT_250) * 8 - 12); [L62] const SORT_250 msb_SORT_250 = (SORT_250)1 << (12 - 1); [L64] const SORT_585 mask_SORT_585 = (SORT_585)-1 >> (sizeof(SORT_585) * 8 - 14); [L65] const SORT_585 msb_SORT_585 = (SORT_585)1 << (14 - 1); [L67] const SORT_587 mask_SORT_587 = (SORT_587)-1 >> (sizeof(SORT_587) * 8 - 16); [L68] const SORT_587 msb_SORT_587 = (SORT_587)1 << (16 - 1); [L70] const SORT_589 mask_SORT_589 = (SORT_589)-1 >> (sizeof(SORT_589) * 8 - 22); [L71] const SORT_589 msb_SORT_589 = (SORT_589)1 << (22 - 1); [L73] const SORT_591 mask_SORT_591 = (SORT_591)-1 >> (sizeof(SORT_591) * 8 - 24); [L74] const SORT_591 msb_SORT_591 = (SORT_591)1 << (24 - 1); [L76] const SORT_593 mask_SORT_593 = (SORT_593)-1 >> (sizeof(SORT_593) * 8 - 30); [L77] const SORT_593 msb_SORT_593 = (SORT_593)1 << (30 - 1); [L79] const SORT_629 mask_SORT_629 = (SORT_629)-1 >> (sizeof(SORT_629) * 8 - 33); [L80] const SORT_629 msb_SORT_629 = (SORT_629)1 << (33 - 1); [L82] const SORT_786 mask_SORT_786 = (SORT_786)-1 >> (sizeof(SORT_786) * 8 - 13); [L83] const SORT_786 msb_SORT_786 = (SORT_786)1 << (13 - 1); [L85] const SORT_789 mask_SORT_789 = (SORT_789)-1 >> (sizeof(SORT_789) * 8 - 15); [L86] const SORT_789 msb_SORT_789 = (SORT_789)1 << (15 - 1); [L88] const SORT_792 mask_SORT_792 = (SORT_792)-1 >> (sizeof(SORT_792) * 8 - 17); [L89] const SORT_792 msb_SORT_792 = (SORT_792)1 << (17 - 1); [L91] const SORT_794 mask_SORT_794 = (SORT_794)-1 >> (sizeof(SORT_794) * 8 - 18); [L92] const SORT_794 msb_SORT_794 = (SORT_794)1 << (18 - 1); [L94] const SORT_885 mask_SORT_885 = (SORT_885)-1 >> (sizeof(SORT_885) * 8 - 19); [L95] const SORT_885 msb_SORT_885 = (SORT_885)1 << (19 - 1); [L97] const SORT_887 mask_SORT_887 = (SORT_887)-1 >> (sizeof(SORT_887) * 8 - 20); [L98] const SORT_887 msb_SORT_887 = (SORT_887)1 << (20 - 1); [L100] const SORT_889 mask_SORT_889 = (SORT_889)-1 >> (sizeof(SORT_889) * 8 - 21); [L101] const SORT_889 msb_SORT_889 = (SORT_889)1 << (21 - 1); [L103] const SORT_1106 mask_SORT_1106 = (SORT_1106)-1 >> (sizeof(SORT_1106) * 8 - 23); [L104] const SORT_1106 msb_SORT_1106 = (SORT_1106)1 << (23 - 1); [L106] const SORT_1254 mask_SORT_1254 = (SORT_1254)-1 >> (sizeof(SORT_1254) * 8 - 26); [L107] const SORT_1254 msb_SORT_1254 = (SORT_1254)1 << (26 - 1); [L109] const SORT_1296 mask_SORT_1296 = (SORT_1296)-1 >> (sizeof(SORT_1296) * 8 - 25); [L110] const SORT_1296 msb_SORT_1296 = (SORT_1296)1 << (25 - 1); [L112] const SORT_1301 mask_SORT_1301 = (SORT_1301)-1 >> (sizeof(SORT_1301) * 8 - 27); [L113] const SORT_1301 msb_SORT_1301 = (SORT_1301)1 << (27 - 1); [L115] const SORT_1304 mask_SORT_1304 = (SORT_1304)-1 >> (sizeof(SORT_1304) * 8 - 28); [L116] const SORT_1304 msb_SORT_1304 = (SORT_1304)1 << (28 - 1); [L118] const SORT_1307 mask_SORT_1307 = (SORT_1307)-1 >> (sizeof(SORT_1307) * 8 - 29); [L119] const SORT_1307 msb_SORT_1307 = (SORT_1307)1 << (29 - 1); [L121] const SORT_1312 mask_SORT_1312 = (SORT_1312)-1 >> (sizeof(SORT_1312) * 8 - 31); [L122] const SORT_1312 msb_SORT_1312 = (SORT_1312)1 << (31 - 1); [L124] const SORT_3020 mask_SORT_3020 = (SORT_3020)-1 >> (sizeof(SORT_3020) * 8 - 34); [L125] const SORT_3020 msb_SORT_3020 = (SORT_3020)1 << (34 - 1); [L127] const SORT_3 var_85 = 0; [L128] const SORT_9 var_89 = 0; [L129] const SORT_3 var_102 = 1; [L130] const SORT_1 var_109 = 0; [L131] const SORT_1 var_117 = 3; [L132] const SORT_1 var_119 = 2; [L133] const SORT_1 var_121 = 1; [L134] const SORT_27 var_125 = 1; [L135] const SORT_27 var_128 = 3; [L136] const SORT_27 var_131 = 2; [L137] const SORT_27 var_135 = 5; [L138] const SORT_27 var_138 = 7; [L139] const SORT_27 var_141 = 6; [L140] const SORT_27 var_145 = 4; [L141] const SORT_34 var_191 = 11; [L142] const SORT_34 var_193 = 10; [L143] const SORT_34 var_195 = 2; [L144] const SORT_34 var_197 = 9; [L145] const SORT_34 var_212 = 21; [L146] const SORT_34 var_214 = 20; [L147] const SORT_34 var_216 = 19; [L148] const SORT_34 var_218 = 18; [L149] const SORT_34 var_220 = 17; [L150] const SORT_34 var_222 = 16; [L151] const SORT_34 var_224 = 15; [L152] const SORT_34 var_226 = 14; [L153] const SORT_34 var_228 = 8; [L154] const SORT_34 var_230 = 6; [L155] const SORT_34 var_232 = 3; [L156] const SORT_34 var_234 = 5; [L157] const SORT_34 var_253 = 4; [L158] const SORT_34 var_255 = 1; [L159] const SORT_34 var_265 = 7; [L160] const SORT_34 var_283 = 13; [L161] const SORT_34 var_291 = 12; [L162] const SORT_34 var_312 = 23; [L163] const SORT_34 var_315 = 22; [L164] const SORT_34 var_324 = 25; [L165] const SORT_34 var_327 = 27; [L166] const SORT_34 var_330 = 26; [L167] const SORT_34 var_334 = 29; [L168] const SORT_34 var_337 = 31; [L169] const SORT_34 var_340 = 30; [L170] const SORT_34 var_344 = 28; [L171] const SORT_34 var_350 = 24; [L172] const SORT_43 var_373 = 0; [L173] const SORT_9 var_449 = 3; [L174] const SORT_27 var_491 = 0; [L175] const SORT_11 var_514 = 0; [L176] const SORT_629 var_630 = 0; [L177] const SORT_9 var_799 = 2; [L178] const SORT_9 var_802 = 1; [L179] const SORT_6 var_1246 = 8; [L180] const SORT_1254 var_1255 = 0; [L181] const SORT_9 var_1341 = 255; [L182] const SORT_43 var_1345 = 1; [L183] const SORT_6 var_1461 = 0; [L184] const SORT_34 var_2373 = 0; [L185] const SORT_6 var_2400 = 1; [L186] const SORT_6 var_2403 = 3; [L187] const SORT_6 var_2406 = 2; [L188] const SORT_6 var_2410 = 5; [L189] const SORT_6 var_2413 = 7; [L190] const SORT_6 var_2416 = 6; [L191] const SORT_6 var_2420 = 4; [L192] const SORT_6 var_2426 = 9; [L193] const SORT_6 var_2429 = 11; [L194] const SORT_6 var_2432 = 10; [L195] const SORT_6 var_2436 = 13; [L196] const SORT_6 var_2439 = 15; [L197] const SORT_6 var_2442 = 14; [L198] const SORT_6 var_2446 = 12; [L199] const SORT_1304 var_2632 = 0; [L200] const SORT_3020 var_3022 = 0; [L202] SORT_1 input_2; [L203] SORT_3 input_4; [L204] SORT_3 input_5; [L205] SORT_6 input_7; [L206] SORT_3 input_8; [L207] SORT_9 input_10; [L208] SORT_11 input_12; [L209] SORT_1 input_13; [L210] SORT_9 input_14; [L211] SORT_9 input_15; [L212] SORT_9 input_16; [L213] SORT_1 input_17; [L214] SORT_9 input_18; [L215] SORT_9 input_19; [L216] SORT_9 input_20; [L217] SORT_3 input_21; [L218] SORT_3 input_22; [L219] SORT_3 input_23; [L220] SORT_3 input_24; [L221] SORT_3 input_25; [L222] SORT_1 input_26; [L223] SORT_27 input_28; [L224] SORT_1 input_29; [L225] SORT_3 input_30; [L226] SORT_3 input_31; [L227] SORT_3 input_32; [L228] SORT_3 input_33; [L229] SORT_34 input_35; [L230] SORT_1 input_36; [L231] SORT_9 input_37; [L232] SORT_11 input_38; [L233] SORT_27 input_39; [L234] SORT_9 input_40; [L235] SORT_9 input_41; [L236] SORT_1 input_42; [L237] SORT_43 input_44; [L238] SORT_1 input_45; [L239] SORT_43 input_46; [L240] SORT_1 input_47; [L241] SORT_43 input_48; [L242] SORT_1 input_49; [L243] SORT_43 input_50; [L244] SORT_1 input_51; [L245] SORT_3 input_52; [L246] SORT_9 input_53; [L247] SORT_3 input_54; [L248] SORT_9 input_55; [L249] SORT_9 input_56; [L250] SORT_9 input_57; [L251] SORT_9 input_58; [L252] SORT_11 input_59; [L253] SORT_11 input_60; [L254] SORT_43 input_61; [L255] SORT_43 input_62; [L256] SORT_1 input_63; [L257] SORT_1 input_64; [L258] SORT_43 input_65; [L259] SORT_43 input_66; [L260] SORT_1 input_67; [L261] SORT_1 input_68; [L262] SORT_43 input_69; [L263] SORT_43 input_70; [L264] SORT_1 input_71; [L265] SORT_1 input_72; [L266] SORT_43 input_73; [L267] SORT_43 input_74; [L268] SORT_1 input_75; [L269] SORT_1 input_76; [L270] SORT_27 input_77; [L271] SORT_27 input_78; [L272] SORT_9 input_79; [L273] SORT_9 input_80; [L274] SORT_1 input_81; [L275] SORT_9 input_82; [L276] SORT_3 input_83; [L277] SORT_1 input_84; [L279] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L280] SORT_9 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L281] SORT_3 state_92 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L282] SORT_9 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L283] SORT_3 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L284] SORT_1 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L285] SORT_9 state_171 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L286] SORT_1 state_397 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L287] SORT_9 state_479 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L288] SORT_27 state_492 = __VERIFIER_nondet_uchar() & mask_SORT_27; [L289] SORT_11 state_515 = __VERIFIER_nondet_uint() & mask_SORT_11; [L290] SORT_43 state_560 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L291] SORT_1 state_563 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L292] SORT_43 state_566 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L293] SORT_1 state_569 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L294] SORT_43 state_572 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L295] SORT_1 state_575 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L296] SORT_43 state_578 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L297] SORT_1 state_581 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L298] SORT_9 state_611 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L299] SORT_9 state_3038 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L300] SORT_27 state_3055 = __VERIFIER_nondet_uchar() & mask_SORT_27; [L301] SORT_11 state_3077 = __VERIFIER_nondet_uint() & mask_SORT_11; [L302] SORT_43 state_3092 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L303] SORT_1 state_3095 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L304] SORT_43 state_3098 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L305] SORT_1 state_3101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L306] SORT_43 state_3104 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L307] SORT_1 state_3107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L308] SORT_43 state_3110 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L309] SORT_1 state_3113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L310] SORT_9 state_3186 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L312] SORT_3 init_87_arg_1 = var_85; [L313] state_86 = init_87_arg_1 [L314] SORT_9 init_91_arg_1 = var_89; [L315] state_90 = init_91_arg_1 [L316] SORT_3 init_93_arg_1 = var_85; [L317] state_92 = init_93_arg_1 [L318] SORT_9 init_96_arg_1 = var_89; [L319] state_95 = init_96_arg_1 [L320] SORT_3 init_107_arg_1 = var_85; [L321] state_106 = init_107_arg_1 [L322] SORT_1 init_111_arg_1 = var_109; [L323] state_110 = init_111_arg_1 [L324] SORT_9 init_172_arg_1 = var_89; [L325] state_171 = init_172_arg_1 [L326] SORT_1 init_398_arg_1 = var_109; [L327] state_397 = init_398_arg_1 [L328] SORT_9 init_480_arg_1 = var_89; [L329] state_479 = init_480_arg_1 [L330] SORT_27 init_493_arg_1 = var_491; [L331] state_492 = init_493_arg_1 [L332] SORT_11 init_516_arg_1 = var_514; [L333] state_515 = init_516_arg_1 [L334] SORT_43 init_561_arg_1 = var_373; [L335] state_560 = init_561_arg_1 [L336] SORT_1 init_564_arg_1 = var_109; [L337] state_563 = init_564_arg_1 [L338] SORT_43 init_567_arg_1 = var_373; [L339] state_566 = init_567_arg_1 [L340] SORT_1 init_570_arg_1 = var_109; [L341] state_569 = init_570_arg_1 [L342] SORT_43 init_573_arg_1 = var_373; [L343] state_572 = init_573_arg_1 [L344] SORT_1 init_576_arg_1 = var_109; [L345] state_575 = init_576_arg_1 [L346] SORT_43 init_579_arg_1 = var_373; [L347] state_578 = init_579_arg_1 [L348] SORT_1 init_582_arg_1 = var_109; [L349] state_581 = init_582_arg_1 [L350] SORT_9 init_612_arg_1 = var_89; [L351] state_611 = init_612_arg_1 [L352] SORT_9 init_3039_arg_1 = var_89; [L353] state_3038 = init_3039_arg_1 [L354] SORT_27 init_3056_arg_1 = var_491; [L355] state_3055 = init_3056_arg_1 [L356] SORT_11 init_3078_arg_1 = var_514; [L357] state_3077 = init_3078_arg_1 [L358] SORT_43 init_3093_arg_1 = var_373; [L359] state_3092 = init_3093_arg_1 [L360] SORT_1 init_3096_arg_1 = var_109; [L361] state_3095 = init_3096_arg_1 [L362] SORT_43 init_3099_arg_1 = var_373; [L363] state_3098 = init_3099_arg_1 [L364] SORT_1 init_3102_arg_1 = var_109; [L365] state_3101 = init_3102_arg_1 [L366] SORT_43 init_3105_arg_1 = var_373; [L367] state_3104 = init_3105_arg_1 [L368] SORT_1 init_3108_arg_1 = var_109; [L369] state_3107 = init_3108_arg_1 [L370] SORT_43 init_3111_arg_1 = var_373; [L371] state_3110 = init_3111_arg_1 [L372] SORT_1 init_3114_arg_1 = var_109; [L373] state_3113 = init_3114_arg_1 [L374] SORT_9 init_3187_arg_1 = var_89; [L375] state_3186 = init_3187_arg_1 VAL [init_107_arg_1=0, init_111_arg_1=0, init_172_arg_1=0, init_3039_arg_1=0, init_3056_arg_1=0, init_3078_arg_1=0, init_3093_arg_1=0, init_3096_arg_1=0, init_3099_arg_1=0, init_3102_arg_1=0, init_3105_arg_1=0, init_3108_arg_1=0, init_3111_arg_1=0, init_3114_arg_1=0, init_3187_arg_1=0, init_398_arg_1=0, init_480_arg_1=0, init_493_arg_1=0, init_516_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_573_arg_1=0, init_576_arg_1=0, init_579_arg_1=0, init_582_arg_1=0, init_612_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_96_arg_1=0, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1106=4294967295, mask_SORT_1254=4294967295, mask_SORT_1296=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1307=4294967295, mask_SORT_1312=4294967295, mask_SORT_241=127, mask_SORT_244=511, mask_SORT_246=1023, mask_SORT_248=2047, mask_SORT_250=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3020=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_585=16383, mask_SORT_587=65535, mask_SORT_589=4294967295, mask_SORT_591=4294967295, mask_SORT_593=4294967295, mask_SORT_6=15, mask_SORT_629=1, mask_SORT_786=8191, mask_SORT_789=32767, mask_SORT_792=4294967295, mask_SORT_794=4294967295, mask_SORT_885=4294967295, mask_SORT_887=4294967295, mask_SORT_889=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1106=4194304, msb_SORT_1254=33554432, msb_SORT_1296=16777216, msb_SORT_1301=67108864, msb_SORT_1304=134217728, msb_SORT_1307=268435456, msb_SORT_1312=1073741824, msb_SORT_241=64, msb_SORT_244=256, msb_SORT_246=512, msb_SORT_248=1024, msb_SORT_250=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3020=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_585=8192, msb_SORT_587=32768, msb_SORT_589=2097152, msb_SORT_591=8388608, msb_SORT_593=536870912, msb_SORT_6=8, msb_SORT_629=4294967296, msb_SORT_786=4096, msb_SORT_789=16384, msb_SORT_792=65536, msb_SORT_794=131072, msb_SORT_885=262144, msb_SORT_887=524288, msb_SORT_889=1048576, msb_SORT_9=128, state_106=0, state_110=0, state_171=0, state_3038=0, state_3055=0, state_3077=0, state_3092=0, state_3095=0, state_3098=0, state_3101=0, state_3104=0, state_3107=0, state_3110=0, state_3113=0, state_3186=0, state_397=0, state_479=0, state_492=0, state_515=0, state_560=0, state_563=0, state_566=0, state_569=0, state_572=0, state_575=0, state_578=0, state_581=0, state_611=0, state_86=0, state_90=0, state_92=0, state_95=0, var_102=1, var_109=0, var_117=3, var_119=2, var_121=1, var_1246=8, var_125=1, var_1255=0, var_128=3, var_131=2, var_1341=255, var_1345=1, var_135=5, var_138=7, var_141=6, var_145=4, var_1461=0, var_191=11, var_193=10, var_195=2, var_197=9, var_212=21, var_214=20, var_216=19, var_218=18, var_220=17, var_222=16, var_224=15, var_226=14, var_228=8, var_230=6, var_232=3, var_234=5, var_2373=0, var_2400=1, var_2403=3, var_2406=2, var_2410=5, var_2413=7, var_2416=6, var_2420=4, var_2426=9, var_2429=11, var_2432=10, var_2436=13, var_2439=15, var_2442=14, var_2446=12, var_253=4, var_255=1, var_2632=0, var_265=7, var_283=13, var_291=12, var_3022=0, var_312=23, var_315=22, var_324=25, var_327=27, var_330=26, var_334=29, var_337=31, var_340=30, var_344=28, var_350=24, var_373=0, var_449=3, var_491=0, var_514=0, var_630=0, var_799=2, var_802=1, var_85=0, var_89=0] [L378] input_2 = __VERIFIER_nondet_uchar() [L379] input_2 = input_2 & mask_SORT_1 [L380] input_4 = __VERIFIER_nondet_uchar() [L381] input_5 = __VERIFIER_nondet_uchar() [L382] input_5 = input_5 & mask_SORT_3 [L383] input_7 = __VERIFIER_nondet_uchar() [L384] input_7 = input_7 & mask_SORT_6 [L385] input_8 = __VERIFIER_nondet_uchar() [L386] input_8 = input_8 & mask_SORT_3 [L387] input_10 = __VERIFIER_nondet_uchar() [L388] input_12 = __VERIFIER_nondet_uint() [L389] input_13 = __VERIFIER_nondet_uchar() [L390] input_13 = input_13 & mask_SORT_1 [L391] input_14 = __VERIFIER_nondet_uchar() [L392] input_15 = __VERIFIER_nondet_uchar() [L393] input_16 = __VERIFIER_nondet_uchar() [L394] input_17 = __VERIFIER_nondet_uchar() [L395] input_17 = input_17 & mask_SORT_1 [L396] input_18 = __VERIFIER_nondet_uchar() [L397] input_19 = __VERIFIER_nondet_uchar() [L398] input_20 = __VERIFIER_nondet_uchar() [L399] input_21 = __VERIFIER_nondet_uchar() [L400] input_21 = input_21 & mask_SORT_3 [L401] input_22 = __VERIFIER_nondet_uchar() [L402] input_22 = input_22 & mask_SORT_3 [L403] input_23 = __VERIFIER_nondet_uchar() [L404] input_24 = __VERIFIER_nondet_uchar() [L405] input_24 = input_24 & mask_SORT_3 [L406] input_25 = __VERIFIER_nondet_uchar() [L407] input_25 = input_25 & mask_SORT_3 [L408] input_26 = __VERIFIER_nondet_uchar() [L409] input_26 = input_26 & mask_SORT_1 [L410] input_28 = __VERIFIER_nondet_uchar() [L411] input_28 = input_28 & mask_SORT_27 [L412] input_29 = __VERIFIER_nondet_uchar() [L413] input_29 = input_29 & mask_SORT_1 [L414] input_30 = __VERIFIER_nondet_uchar() [L415] input_30 = input_30 & mask_SORT_3 [L416] input_31 = __VERIFIER_nondet_uchar() [L417] input_32 = __VERIFIER_nondet_uchar() [L418] input_33 = __VERIFIER_nondet_uchar() [L419] input_33 = input_33 & mask_SORT_3 [L420] input_35 = __VERIFIER_nondet_uchar() [L421] input_35 = input_35 & mask_SORT_34 [L422] input_36 = __VERIFIER_nondet_uchar() [L423] input_37 = __VERIFIER_nondet_uchar() [L424] input_38 = __VERIFIER_nondet_uint() [L425] input_39 = __VERIFIER_nondet_uchar() [L426] input_40 = __VERIFIER_nondet_uchar() [L427] input_41 = __VERIFIER_nondet_uchar() [L428] input_42 = __VERIFIER_nondet_uchar() [L429] input_44 = __VERIFIER_nondet_uchar() [L430] input_45 = __VERIFIER_nondet_uchar() [L431] input_46 = __VERIFIER_nondet_uchar() [L432] input_47 = __VERIFIER_nondet_uchar() [L433] input_48 = __VERIFIER_nondet_uchar() [L434] input_49 = __VERIFIER_nondet_uchar() [L435] input_50 = __VERIFIER_nondet_uchar() [L436] input_51 = __VERIFIER_nondet_uchar() [L437] input_52 = __VERIFIER_nondet_uchar() [L438] input_53 = __VERIFIER_nondet_uchar() [L439] input_54 = __VERIFIER_nondet_uchar() [L440] input_55 = __VERIFIER_nondet_uchar() [L441] input_56 = __VERIFIER_nondet_uchar() [L442] input_57 = __VERIFIER_nondet_uchar() [L443] input_58 = __VERIFIER_nondet_uchar() [L444] input_59 = __VERIFIER_nondet_uint() [L445] input_60 = __VERIFIER_nondet_uint() [L446] input_61 = __VERIFIER_nondet_uchar() [L447] input_62 = __VERIFIER_nondet_uchar() [L448] input_63 = __VERIFIER_nondet_uchar() [L449] input_64 = __VERIFIER_nondet_uchar() [L450] input_65 = __VERIFIER_nondet_uchar() [L451] input_66 = __VERIFIER_nondet_uchar() [L452] input_67 = __VERIFIER_nondet_uchar() [L453] input_68 = __VERIFIER_nondet_uchar() [L454] input_69 = __VERIFIER_nondet_uchar() [L455] input_70 = __VERIFIER_nondet_uchar() [L456] input_71 = __VERIFIER_nondet_uchar() [L457] input_72 = __VERIFIER_nondet_uchar() [L458] input_73 = __VERIFIER_nondet_uchar() [L459] input_74 = __VERIFIER_nondet_uchar() [L460] input_75 = __VERIFIER_nondet_uchar() [L461] input_76 = __VERIFIER_nondet_uchar() [L462] input_77 = __VERIFIER_nondet_uchar() [L463] input_78 = __VERIFIER_nondet_uchar() [L464] input_79 = __VERIFIER_nondet_uchar() [L465] input_80 = __VERIFIER_nondet_uchar() [L466] input_81 = __VERIFIER_nondet_uchar() [L467] input_82 = __VERIFIER_nondet_uchar() [L468] input_83 = __VERIFIER_nondet_uchar() [L469] input_84 = __VERIFIER_nondet_uchar() [L472] SORT_3 var_88_arg_0 = state_86; [L473] SORT_3 var_88 = ~var_88_arg_0; [L474] SORT_3 var_94_arg_0 = state_92; [L475] SORT_9 var_94_arg_1 = state_90; [L476] SORT_9 var_94_arg_2 = input_41; VAL [init_107_arg_1=0, init_111_arg_1=0, init_172_arg_1=0, init_3039_arg_1=0, init_3056_arg_1=0, init_3078_arg_1=0, init_3093_arg_1=0, init_3096_arg_1=0, init_3099_arg_1=0, init_3102_arg_1=0, init_3105_arg_1=0, init_3108_arg_1=0, init_3111_arg_1=0, init_3114_arg_1=0, init_3187_arg_1=0, init_398_arg_1=0, init_480_arg_1=0, init_493_arg_1=0, init_516_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_573_arg_1=0, init_576_arg_1=0, init_579_arg_1=0, init_582_arg_1=0, init_612_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_96_arg_1=0, input_10=2, input_12=23, input_13=0, input_14=5, input_15=30, input_16=15, input_17=1, input_18=36, input_19=45, input_2=1, input_20=37, input_21=0, input_22=1, input_23=43, input_24=0, input_25=0, input_26=0, input_28=0, input_29=0, input_30=0, input_31=18, input_32=57, input_33=1, input_35=0, input_36=56, input_37=26, input_38=48, input_39=6, input_4=19, input_40=55, input_41=0, input_42=9, input_44=24, input_45=38, input_46=42, input_47=28, input_48=41, input_49=3, input_5=0, input_50=8, input_51=52, input_52=31, input_53=12, input_54=35, input_55=50, input_56=27, input_57=54, input_58=44, input_59=20, input_60=32, input_61=17, input_62=7, input_63=33, input_64=39, input_65=53, input_66=58, input_67=40, input_68=11, input_69=4, input_7=1, input_70=49, input_71=22, input_72=46, input_73=14, input_74=10, input_75=34, input_76=13, input_77=59, input_78=29, input_79=21, input_8=0, input_80=25, input_81=16, input_82=1, input_83=51, input_84=47, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1106=4294967295, mask_SORT_1254=4294967295, mask_SORT_1296=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1307=4294967295, mask_SORT_1312=4294967295, mask_SORT_241=127, mask_SORT_244=511, mask_SORT_246=1023, mask_SORT_248=2047, mask_SORT_250=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3020=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_585=16383, mask_SORT_587=65535, mask_SORT_589=4294967295, mask_SORT_591=4294967295, mask_SORT_593=4294967295, mask_SORT_6=15, mask_SORT_629=1, mask_SORT_786=8191, mask_SORT_789=32767, mask_SORT_792=4294967295, mask_SORT_794=4294967295, mask_SORT_885=4294967295, mask_SORT_887=4294967295, mask_SORT_889=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1106=4194304, msb_SORT_1254=33554432, msb_SORT_1296=16777216, msb_SORT_1301=67108864, msb_SORT_1304=134217728, msb_SORT_1307=268435456, msb_SORT_1312=1073741824, msb_SORT_241=64, msb_SORT_244=256, msb_SORT_246=512, msb_SORT_248=1024, msb_SORT_250=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3020=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_585=8192, msb_SORT_587=32768, msb_SORT_589=2097152, msb_SORT_591=8388608, msb_SORT_593=536870912, msb_SORT_6=8, msb_SORT_629=4294967296, msb_SORT_786=4096, msb_SORT_789=16384, msb_SORT_792=65536, msb_SORT_794=131072, msb_SORT_885=262144, msb_SORT_887=524288, msb_SORT_889=1048576, msb_SORT_9=128, state_106=0, state_110=0, state_171=0, state_3038=0, state_3055=0, state_3077=0, state_3092=0, state_3095=0, state_3098=0, state_3101=0, state_3104=0, state_3107=0, state_3110=0, state_3113=0, state_3186=0, state_397=0, state_479=0, state_492=0, state_515=0, state_560=0, state_563=0, state_566=0, state_569=0, state_572=0, state_575=0, state_578=0, state_581=0, state_611=0, state_86=0, state_90=0, state_92=0, state_95=0, var_102=1, var_109=0, var_117=3, var_119=2, var_121=1, var_1246=8, var_125=1, var_1255=0, var_128=3, var_131=2, var_1341=255, var_1345=1, var_135=5, var_138=7, var_141=6, var_145=4, var_1461=0, var_191=11, var_193=10, var_195=2, var_197=9, var_212=21, var_214=20, var_216=19, var_218=18, var_220=17, var_222=16, var_224=15, var_226=14, var_228=8, var_230=6, var_232=3, var_234=5, var_2373=0, var_2400=1, var_2403=3, var_2406=2, var_2410=5, var_2413=7, var_2416=6, var_2420=4, var_2426=9, var_2429=11, var_2432=10, var_2436=13, var_2439=15, var_2442=14, var_2446=12, var_253=4, var_255=1, var_2632=0, var_265=7, var_283=13, var_291=12, var_3022=0, var_312=23, var_315=22, var_324=25, var_327=27, var_330=26, var_334=29, var_337=31, var_340=30, var_344=28, var_350=24, var_373=0, var_449=3, var_491=0, var_514=0, var_630=0, var_799=2, var_802=1, var_85=0, var_88_arg_0=0, var_89=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0] [L477] EXPR var_94_arg_0 ? var_94_arg_1 : var_94_arg_2 VAL [init_107_arg_1=0, init_111_arg_1=0, init_172_arg_1=0, init_3039_arg_1=0, init_3056_arg_1=0, init_3078_arg_1=0, init_3093_arg_1=0, init_3096_arg_1=0, init_3099_arg_1=0, init_3102_arg_1=0, init_3105_arg_1=0, init_3108_arg_1=0, init_3111_arg_1=0, init_3114_arg_1=0, init_3187_arg_1=0, init_398_arg_1=0, init_480_arg_1=0, init_493_arg_1=0, init_516_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_573_arg_1=0, init_576_arg_1=0, init_579_arg_1=0, init_582_arg_1=0, init_612_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_96_arg_1=0, input_10=2, input_12=23, input_13=0, input_14=5, input_15=30, input_16=15, input_17=1, input_18=36, input_19=45, input_2=1, input_20=37, input_21=0, input_22=1, input_23=43, input_24=0, input_25=0, input_26=0, input_28=0, input_29=0, input_30=0, input_31=18, input_32=57, input_33=1, input_35=0, input_36=56, input_37=26, input_38=48, input_39=6, input_4=19, input_40=55, input_41=0, input_42=9, input_44=24, input_45=38, input_46=42, input_47=28, input_48=41, input_49=3, input_5=0, input_50=8, input_51=52, input_52=31, input_53=12, input_54=35, input_55=50, input_56=27, input_57=54, input_58=44, input_59=20, input_60=32, input_61=17, input_62=7, input_63=33, input_64=39, input_65=53, input_66=58, input_67=40, input_68=11, input_69=4, input_7=1, input_70=49, input_71=22, input_72=46, input_73=14, input_74=10, input_75=34, input_76=13, input_77=59, input_78=29, input_79=21, input_8=0, input_80=25, input_81=16, input_82=1, input_83=51, input_84=47, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1106=4294967295, mask_SORT_1254=4294967295, mask_SORT_1296=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1307=4294967295, mask_SORT_1312=4294967295, mask_SORT_241=127, mask_SORT_244=511, mask_SORT_246=1023, mask_SORT_248=2047, mask_SORT_250=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3020=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_585=16383, mask_SORT_587=65535, mask_SORT_589=4294967295, mask_SORT_591=4294967295, mask_SORT_593=4294967295, mask_SORT_6=15, mask_SORT_629=1, mask_SORT_786=8191, mask_SORT_789=32767, mask_SORT_792=4294967295, mask_SORT_794=4294967295, mask_SORT_885=4294967295, mask_SORT_887=4294967295, mask_SORT_889=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1106=4194304, msb_SORT_1254=33554432, msb_SORT_1296=16777216, msb_SORT_1301=67108864, msb_SORT_1304=134217728, msb_SORT_1307=268435456, msb_SORT_1312=1073741824, msb_SORT_241=64, msb_SORT_244=256, msb_SORT_246=512, msb_SORT_248=1024, msb_SORT_250=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3020=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_585=8192, msb_SORT_587=32768, msb_SORT_589=2097152, msb_SORT_591=8388608, msb_SORT_593=536870912, msb_SORT_6=8, msb_SORT_629=4294967296, msb_SORT_786=4096, msb_SORT_789=16384, msb_SORT_792=65536, msb_SORT_794=131072, msb_SORT_885=262144, msb_SORT_887=524288, msb_SORT_889=1048576, msb_SORT_9=128, state_106=0, state_110=0, state_171=0, state_3038=0, state_3055=0, state_3077=0, state_3092=0, state_3095=0, state_3098=0, state_3101=0, state_3104=0, state_3107=0, state_3110=0, state_3113=0, state_3186=0, state_397=0, state_479=0, state_492=0, state_515=0, state_560=0, state_563=0, state_566=0, state_569=0, state_572=0, state_575=0, state_578=0, state_581=0, state_611=0, state_86=0, state_90=0, state_92=0, state_95=0, var_102=1, var_109=0, var_117=3, var_119=2, var_121=1, var_1246=8, var_125=1, var_1255=0, var_128=3, var_131=2, var_1341=255, var_1345=1, var_135=5, var_138=7, var_141=6, var_145=4, var_1461=0, var_191=11, var_193=10, var_195=2, var_197=9, var_212=21, var_214=20, var_216=19, var_218=18, var_220=17, var_222=16, var_224=15, var_226=14, var_228=8, var_230=6, var_232=3, var_234=5, var_2373=0, var_2400=1, var_2403=3, var_2406=2, var_2410=5, var_2413=7, var_2416=6, var_2420=4, var_2426=9, var_2429=11, var_2432=10, var_2436=13, var_2439=15, var_2442=14, var_2446=12, var_253=4, var_255=1, var_2632=0, var_265=7, var_283=13, var_291=12, var_3022=0, var_312=23, var_315=22, var_324=25, var_327=27, var_330=26, var_334=29, var_337=31, var_340=30, var_344=28, var_350=24, var_373=0, var_449=3, var_491=0, var_514=0, var_630=0, var_799=2, var_802=1, var_85=0, var_88_arg_0=0, var_89=0, var_94_arg_0=0, var_94_arg_0 ? var_94_arg_1 : var_94_arg_2=0, var_94_arg_1=0, var_94_arg_2=0] [L477] SORT_9 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L478] var_94 = var_94 & mask_SORT_9 [L479] SORT_3 var_97_arg_0 = state_92; [L480] SORT_9 var_97_arg_1 = state_95; [L481] SORT_9 var_97_arg_2 = input_41; VAL [init_107_arg_1=0, init_111_arg_1=0, init_172_arg_1=0, init_3039_arg_1=0, init_3056_arg_1=0, init_3078_arg_1=0, init_3093_arg_1=0, init_3096_arg_1=0, init_3099_arg_1=0, init_3102_arg_1=0, init_3105_arg_1=0, init_3108_arg_1=0, init_3111_arg_1=0, init_3114_arg_1=0, init_3187_arg_1=0, init_398_arg_1=0, init_480_arg_1=0, init_493_arg_1=0, init_516_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_573_arg_1=0, init_576_arg_1=0, init_579_arg_1=0, init_582_arg_1=0, init_612_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_96_arg_1=0, input_10=2, input_12=23, input_13=0, input_14=5, input_15=30, input_16=15, input_17=1, input_18=36, input_19=45, input_2=1, input_20=37, input_21=0, input_22=1, input_23=43, input_24=0, input_25=0, input_26=0, input_28=0, input_29=0, input_30=0, input_31=18, input_32=57, input_33=1, input_35=0, input_36=56, input_37=26, input_38=48, input_39=6, input_4=19, input_40=55, input_41=0, input_42=9, input_44=24, input_45=38, input_46=42, input_47=28, input_48=41, input_49=3, input_5=0, input_50=8, input_51=52, input_52=31, input_53=12, input_54=35, input_55=50, input_56=27, input_57=54, input_58=44, input_59=20, input_60=32, input_61=17, input_62=7, input_63=33, input_64=39, input_65=53, input_66=58, input_67=40, input_68=11, input_69=4, input_7=1, input_70=49, input_71=22, input_72=46, input_73=14, input_74=10, input_75=34, input_76=13, input_77=59, input_78=29, input_79=21, input_8=0, input_80=25, input_81=16, input_82=1, input_83=51, input_84=47, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1106=4294967295, mask_SORT_1254=4294967295, mask_SORT_1296=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1307=4294967295, mask_SORT_1312=4294967295, mask_SORT_241=127, mask_SORT_244=511, mask_SORT_246=1023, mask_SORT_248=2047, mask_SORT_250=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3020=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_585=16383, mask_SORT_587=65535, mask_SORT_589=4294967295, mask_SORT_591=4294967295, mask_SORT_593=4294967295, mask_SORT_6=15, mask_SORT_629=1, mask_SORT_786=8191, mask_SORT_789=32767, mask_SORT_792=4294967295, mask_SORT_794=4294967295, mask_SORT_885=4294967295, mask_SORT_887=4294967295, mask_SORT_889=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1106=4194304, msb_SORT_1254=33554432, msb_SORT_1296=16777216, msb_SORT_1301=67108864, msb_SORT_1304=134217728, msb_SORT_1307=268435456, msb_SORT_1312=1073741824, msb_SORT_241=64, msb_SORT_244=256, msb_SORT_246=512, msb_SORT_248=1024, msb_SORT_250=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3020=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_585=8192, msb_SORT_587=32768, msb_SORT_589=2097152, msb_SORT_591=8388608, msb_SORT_593=536870912, msb_SORT_6=8, msb_SORT_629=4294967296, msb_SORT_786=4096, msb_SORT_789=16384, msb_SORT_792=65536, msb_SORT_794=131072, msb_SORT_885=262144, msb_SORT_887=524288, msb_SORT_889=1048576, msb_SORT_9=128, state_106=0, state_110=0, state_171=0, state_3038=0, state_3055=0, state_3077=0, state_3092=0, state_3095=0, state_3098=0, state_3101=0, state_3104=0, state_3107=0, state_3110=0, state_3113=0, state_3186=0, state_397=0, state_479=0, state_492=0, state_515=0, state_560=0, state_563=0, state_566=0, state_569=0, state_572=0, state_575=0, state_578=0, state_581=0, state_611=0, state_86=0, state_90=0, state_92=0, state_95=0, var_102=1, var_109=0, var_117=3, var_119=2, var_121=1, var_1246=8, var_125=1, var_1255=0, var_128=3, var_131=2, var_1341=255, var_1345=1, var_135=5, var_138=7, var_141=6, var_145=4, var_1461=0, var_191=11, var_193=10, var_195=2, var_197=9, var_212=21, var_214=20, var_216=19, var_218=18, var_220=17, var_222=16, var_224=15, var_226=14, var_228=8, var_230=6, var_232=3, var_234=5, var_2373=0, var_2400=1, var_2403=3, var_2406=2, var_2410=5, var_2413=7, var_2416=6, var_2420=4, var_2426=9, var_2429=11, var_2432=10, var_2436=13, var_2439=15, var_2442=14, var_2446=12, var_253=4, var_255=1, var_2632=0, var_265=7, var_283=13, var_291=12, var_3022=0, var_312=23, var_315=22, var_324=25, var_327=27, var_330=26, var_334=29, var_337=31, var_340=30, var_344=28, var_350=24, var_373=0, var_449=3, var_491=0, var_514=0, var_630=0, var_799=2, var_802=1, var_85=0, var_88_arg_0=0, var_89=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_97_arg_0=0, var_97_arg_1=0, var_97_arg_2=0] [L482] EXPR var_97_arg_0 ? var_97_arg_1 : var_97_arg_2 VAL [init_107_arg_1=0, init_111_arg_1=0, init_172_arg_1=0, init_3039_arg_1=0, init_3056_arg_1=0, init_3078_arg_1=0, init_3093_arg_1=0, init_3096_arg_1=0, init_3099_arg_1=0, init_3102_arg_1=0, init_3105_arg_1=0, init_3108_arg_1=0, init_3111_arg_1=0, init_3114_arg_1=0, init_3187_arg_1=0, init_398_arg_1=0, init_480_arg_1=0, init_493_arg_1=0, init_516_arg_1=0, init_561_arg_1=0, init_564_arg_1=0, init_567_arg_1=0, init_570_arg_1=0, init_573_arg_1=0, init_576_arg_1=0, init_579_arg_1=0, init_582_arg_1=0, init_612_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_96_arg_1=0, input_10=2, input_12=23, input_13=0, input_14=5, input_15=30, input_16=15, input_17=1, input_18=36, input_19=45, input_2=1, input_20=37, input_21=0, input_22=1, input_23=43, input_24=0, input_25=0, input_26=0, input_28=0, input_29=0, input_30=0, input_31=18, input_32=57, input_33=1, input_35=0, input_36=56, input_37=26, input_38=48, input_39=6, input_4=19, input_40=55, input_41=0, input_42=9, input_44=24, input_45=38, input_46=42, input_47=28, input_48=41, input_49=3, input_5=0, input_50=8, input_51=52, input_52=31, input_53=12, input_54=35, input_55=50, input_56=27, input_57=54, input_58=44, input_59=20, input_60=32, input_61=17, input_62=7, input_63=33, input_64=39, input_65=53, input_66=58, input_67=40, input_68=11, input_69=4, input_7=1, input_70=49, input_71=22, input_72=46, input_73=14, input_74=10, input_75=34, input_76=13, input_77=59, input_78=29, input_79=21, input_8=0, input_80=25, input_81=16, input_82=1, input_83=51, input_84=47, mask_SORT_1=3, mask_SORT_11=4294967295, mask_SORT_1106=4294967295, mask_SORT_1254=4294967295, mask_SORT_1296=4294967295, mask_SORT_1301=4294967295, mask_SORT_1304=4294967295, mask_SORT_1307=4294967295, mask_SORT_1312=4294967295, mask_SORT_241=127, mask_SORT_244=511, mask_SORT_246=1023, mask_SORT_248=2047, mask_SORT_250=4095, mask_SORT_27=7, mask_SORT_3=1, mask_SORT_3020=18446744073709551615, mask_SORT_34=31, mask_SORT_43=63, mask_SORT_585=16383, mask_SORT_587=65535, mask_SORT_589=4294967295, mask_SORT_591=4294967295, mask_SORT_593=4294967295, mask_SORT_6=15, mask_SORT_629=1, mask_SORT_786=8191, mask_SORT_789=32767, mask_SORT_792=4294967295, mask_SORT_794=4294967295, mask_SORT_885=4294967295, mask_SORT_887=4294967295, mask_SORT_889=4294967295, mask_SORT_9=255, msb_SORT_1=2, msb_SORT_11=2147483648, msb_SORT_1106=4194304, msb_SORT_1254=33554432, msb_SORT_1296=16777216, msb_SORT_1301=67108864, msb_SORT_1304=134217728, msb_SORT_1307=268435456, msb_SORT_1312=1073741824, msb_SORT_241=64, msb_SORT_244=256, msb_SORT_246=512, msb_SORT_248=1024, msb_SORT_250=2048, msb_SORT_27=4, msb_SORT_3=1, msb_SORT_3020=8589934592, msb_SORT_34=16, msb_SORT_43=32, msb_SORT_585=8192, msb_SORT_587=32768, msb_SORT_589=2097152, msb_SORT_591=8388608, msb_SORT_593=536870912, msb_SORT_6=8, msb_SORT_629=4294967296, msb_SORT_786=4096, msb_SORT_789=16384, msb_SORT_792=65536, msb_SORT_794=131072, msb_SORT_885=262144, msb_SORT_887=524288, msb_SORT_889=1048576, msb_SORT_9=128, state_106=0, state_110=0, state_171=0, state_3038=0, state_3055=0, state_3077=0, state_3092=0, state_3095=0, state_3098=0, state_3101=0, state_3104=0, state_3107=0, state_3110=0, state_3113=0, state_3186=0, state_397=0, state_479=0, state_492=0, state_515=0, state_560=0, state_563=0, state_566=0, state_569=0, state_572=0, state_575=0, state_578=0, state_581=0, state_611=0, state_86=0, state_90=0, state_92=0, state_95=0, var_102=1, var_109=0, var_117=3, var_119=2, var_121=1, var_1246=8, var_125=1, var_1255=0, var_128=3, var_131=2, var_1341=255, var_1345=1, var_135=5, var_138=7, var_141=6, var_145=4, var_1461=0, var_191=11, var_193=10, var_195=2, var_197=9, var_212=21, var_214=20, var_216=19, var_218=18, var_220=17, var_222=16, var_224=15, var_226=14, var_228=8, var_230=6, var_232=3, var_234=5, var_2373=0, var_2400=1, var_2403=3, var_2406=2, var_2410=5, var_2413=7, var_2416=6, var_2420=4, var_2426=9, var_2429=11, var_2432=10, var_2436=13, var_2439=15, var_2442=14, var_2446=12, var_253=4, var_255=1, var_2632=0, var_265=7, var_283=13, var_291=12, var_3022=0, var_312=23, var_315=22, var_324=25, var_327=27, var_330=26, var_334=29, var_337=31, var_340=30, var_344=28, var_350=24, var_373=0, var_449=3, var_491=0, var_514=0, var_630=0, var_799=2, var_802=1, var_85=0, var_88_arg_0=0, var_89=0, var_94=0, var_94_arg_0=0, var_94_arg_1=0, var_94_arg_2=0, var_97_arg_0=0, var_97_arg_0 ? var_97_arg_1 : var_97_arg_2=0, var_97_arg_1=0, var_97_arg_2=0] [L482] SORT_9 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L483] var_97 = var_97 & mask_SORT_9 [L484] SORT_9 var_98_arg_0 = var_94; [L485] SORT_9 var_98_arg_1 = var_97; [L486] SORT_3 var_98 = var_98_arg_0 == var_98_arg_1; [L487] SORT_3 var_99_arg_0 = var_88; [L488] SORT_3 var_99_arg_1 = var_98; [L489] SORT_3 var_99 = var_99_arg_0 | var_99_arg_1; [L490] SORT_3 var_103_arg_0 = var_99; [L491] SORT_3 var_103 = ~var_103_arg_0; [L492] SORT_3 var_104_arg_0 = var_102; [L493] SORT_3 var_104_arg_1 = var_103; [L494] SORT_3 var_104 = var_104_arg_0 & var_104_arg_1; [L495] var_104 = var_104 & mask_SORT_3 [L496] SORT_3 bad_105_arg_0 = var_104; [L497] CALL __VERIFIER_assert(!(bad_105_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1695 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 4192 SdHoareTripleChecker+Valid, 16.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4192 mSDsluCounter, 15087 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10057 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5030 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1695occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 1400 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:42:05,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6109a1fac0fefb649a7f9112d9de6794b20b2eeab3ffcf65d90d2df873fff6ac --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:42:07,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:42:07,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:42:07,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:42:07,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:42:07,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:42:07,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:42:07,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:42:07,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:42:07,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:42:07,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:42:07,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:42:07,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:42:07,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:42:07,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:42:07,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:42:07,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:42:07,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:42:07,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:42:07,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:42:07,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:42:07,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:42:07,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:42:07,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:42:07,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:42:07,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:42:07,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:42:07,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:42:07,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:42:07,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:42:07,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:42:07,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:42:07,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:42:07,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:42:07,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:42:07,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:42:07,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:42:07,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:42:07,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:42:07,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:42:07,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:42:07,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:42:07,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:42:07,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:42:07,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:42:07,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:42:07,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:42:07,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:42:07,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:42:07,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:42:07,920 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:42:07,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:42:07,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:42:07,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:42:07,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:42:07,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:42:07,923 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:42:07,923 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:42:07,924 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:42:07,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:42:07,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:42:07,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:42:07,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:42:07,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:42:07,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:42:07,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:07,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:42:07,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:42:07,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:42:07,927 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:42:07,927 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:42:07,928 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:42:07,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:42:07,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:42:07,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:42:07,929 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_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6109a1fac0fefb649a7f9112d9de6794b20b2eeab3ffcf65d90d2df873fff6ac [2022-11-02 20:42:08,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:42:08,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:42:08,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:42:08,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:42:08,363 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:42:08,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c [2022-11-02 20:42:08,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/010cb5a30/56a22cbaddde4feab758065c8d4d7459/FLAG3f56a3aef [2022-11-02 20:42:09,404 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:42:09,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c [2022-11-02 20:42:09,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/010cb5a30/56a22cbaddde4feab758065c8d4d7459/FLAG3f56a3aef [2022-11-02 20:42:09,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/data/010cb5a30/56a22cbaddde4feab758065c8d4d7459 [2022-11-02 20:42:09,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:42:09,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:42:09,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:09,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:42:09,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:42:09,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:09" (1/1) ... [2022-11-02 20:42:09,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb4be72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:09, skipping insertion in model container [2022-11-02 20:42:09,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:09" (1/1) ... [2022-11-02 20:42:09,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:42:10,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:42:10,380 WARN L230 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_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c[1107,1120] [2022-11-02 20:42:11,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:11,644 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:42:11,656 WARN L230 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_84d38009-fd22-42a1-8b6a-976111e604c7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal174.c[1107,1120] [2022-11-02 20:42:12,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:12,364 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:42:12,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12 WrapperNode [2022-11-02 20:42:12,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:12,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:12,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:42:12,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:42:12,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:12,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,058 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15928 [2022-11-02 20:42:13,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:13,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:42:13,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:42:13,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:42:13,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:42:13,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:42:13,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:42:13,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:42:13,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (1/1) ... [2022-11-02 20:42:13,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:13,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:13,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:42:13,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:42:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:42:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:42:15,859 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:42:15,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:42:25,235 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:42:25,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:42:25,269 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:42:25,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:25 BoogieIcfgContainer [2022-11-02 20:42:25,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:42:25,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:42:25,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:42:25,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:42:25,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:09" (1/3) ... [2022-11-02 20:42:25,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683d8a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:25, skipping insertion in model container [2022-11-02 20:42:25,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:12" (2/3) ... [2022-11-02 20:42:25,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683d8a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:25, skipping insertion in model container [2022-11-02 20:42:25,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:25" (3/3) ... [2022-11-02 20:42:25,285 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal174.c [2022-11-02 20:42:25,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:42:25,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:42:25,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:42:25,492 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@713eecda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:42:25,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:42:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 1695 states, 1693 states have (on average 1.4997046662728883) internal successors, (2539), 1694 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:42:25,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:25,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:25,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash -332259343, now seen corresponding path program 1 times [2022-11-02 20:42:25,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:25,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585913983] [2022-11-02 20:42:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:25,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:25,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:25,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:25,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:42:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:28,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:42:28,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:28,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:28,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585913983] [2022-11-02 20:42:28,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585913983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:28,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:28,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:42:28,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433487790] [2022-11-02 20:42:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:28,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:42:28,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:42:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:42:28,280 INFO L87 Difference]: Start difference. First operand has 1695 states, 1693 states have (on average 1.4997046662728883) internal successors, (2539), 1694 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:29,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:29,377 INFO L93 Difference]: Finished difference Result 6761 states and 10139 transitions. [2022-11-02 20:42:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:42:29,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:42:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:29,420 INFO L225 Difference]: With dead ends: 6761 [2022-11-02 20:42:29,421 INFO L226 Difference]: Without dead ends: 5068 [2022-11-02 20:42:29,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:29,447 INFO L413 NwaCegarLoop]: 2503 mSDtfsCounter, 7586 mSDsluCounter, 7528 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7586 SdHoareTripleChecker+Valid, 10031 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:29,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7586 Valid, 10031 Invalid, 95 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:42:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2022-11-02 20:42:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 1693. [2022-11-02 20:42:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1692 states have (on average 1.49822695035461) internal successors, (2535), 1692 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2535 transitions. [2022-11-02 20:42:29,750 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2535 transitions. Word has length 9 [2022-11-02 20:42:29,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:29,751 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2535 transitions. [2022-11-02 20:42:29,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:29,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2535 transitions. [2022-11-02 20:42:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:42:29,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:29,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:29,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:29,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:29,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:29,975 INFO L85 PathProgramCache]: Analyzing trace with hash -275001041, now seen corresponding path program 1 times [2022-11-02 20:42:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182013598] [2022-11-02 20:42:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:29,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:29,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:42:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:32,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:42:32,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:32,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:32,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:32,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182013598] [2022-11-02 20:42:32,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182013598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:32,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:32,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:42:32,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970667193] [2022-11-02 20:42:32,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:32,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:42:32,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:42:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:42:32,296 INFO L87 Difference]: Start difference. First operand 1693 states and 2535 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:33,231 INFO L93 Difference]: Finished difference Result 6757 states and 10123 transitions. [2022-11-02 20:42:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:42:33,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:42:33,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:33,250 INFO L225 Difference]: With dead ends: 6757 [2022-11-02 20:42:33,250 INFO L226 Difference]: Without dead ends: 5068 [2022-11-02 20:42:33,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:33,258 INFO L413 NwaCegarLoop]: 2505 mSDtfsCounter, 7580 mSDsluCounter, 7525 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7580 SdHoareTripleChecker+Valid, 10030 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:33,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7580 Valid, 10030 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:42:33,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2022-11-02 20:42:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 1695. [2022-11-02 20:42:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1694 states have (on average 1.4976387249114522) internal successors, (2537), 1694 states have internal predecessors, (2537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2537 transitions. [2022-11-02 20:42:33,327 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2537 transitions. Word has length 9 [2022-11-02 20:42:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:33,328 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2537 transitions. [2022-11-02 20:42:33,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:33,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2537 transitions. [2022-11-02 20:42:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:42:33,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:33,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:33,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:33,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:33,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:33,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:33,551 INFO L85 PathProgramCache]: Analyzing trace with hash -274941459, now seen corresponding path program 1 times [2022-11-02 20:42:33,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:33,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927759822] [2022-11-02 20:42:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:33,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:33,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:33,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:33,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:42:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:42:36,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:36,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:36,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:36,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927759822] [2022-11-02 20:42:36,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927759822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:36,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:36,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:42:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421926837] [2022-11-02 20:42:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:36,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:42:36,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:42:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:36,122 INFO L87 Difference]: Start difference. First operand 1695 states and 2537 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,241 INFO L93 Difference]: Finished difference Result 3385 states and 5069 transitions. [2022-11-02 20:42:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:42:38,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-02 20:42:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,255 INFO L225 Difference]: With dead ends: 3385 [2022-11-02 20:42:38,255 INFO L226 Difference]: Without dead ends: 3383 [2022-11-02 20:42:38,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:42:38,259 INFO L413 NwaCegarLoop]: 2477 mSDtfsCounter, 7576 mSDsluCounter, 7474 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7576 SdHoareTripleChecker+Valid, 9951 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7576 Valid, 9951 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:42:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2022-11-02 20:42:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 1697. [2022-11-02 20:42:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1696 states have (on average 1.497051886792453) internal successors, (2539), 1696 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2539 transitions. [2022-11-02 20:42:38,328 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2539 transitions. Word has length 9 [2022-11-02 20:42:38,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:38,329 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2539 transitions. [2022-11-02 20:42:38,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2539 transitions. [2022-11-02 20:42:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-02 20:42:38,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:38,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:38,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-02 20:42:38,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:38,687 INFO L85 PathProgramCache]: Analyzing trace with hash 521529753, now seen corresponding path program 1 times [2022-11-02 20:42:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:38,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074814126] [2022-11-02 20:42:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:38,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:38,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:38,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:42:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:44,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 12484 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:42:44,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:45,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:45,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:45,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074814126] [2022-11-02 20:42:45,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074814126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:45,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:45,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:42:45,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544664721] [2022-11-02 20:42:45,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:45,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:42:45,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:45,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:42:45,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:42:45,136 INFO L87 Difference]: Start difference. First operand 1697 states and 2539 transitions. Second operand has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:46,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:46,043 INFO L93 Difference]: Finished difference Result 6764 states and 10130 transitions. [2022-11-02 20:42:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:42:46,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 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 1696 [2022-11-02 20:42:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:46,061 INFO L225 Difference]: With dead ends: 6764 [2022-11-02 20:42:46,061 INFO L226 Difference]: Without dead ends: 5075 [2022-11-02 20:42:46,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1699 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:42:46,066 INFO L413 NwaCegarLoop]: 2520 mSDtfsCounter, 17683 mSDsluCounter, 7557 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17683 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:46,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17683 Valid, 10077 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:42:46,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2022-11-02 20:42:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 1699. [2022-11-02 20:42:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1698 states have (on average 1.4964664310954063) internal successors, (2541), 1698 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2541 transitions. [2022-11-02 20:42:46,133 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2541 transitions. Word has length 1696 [2022-11-02 20:42:46,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:46,134 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2541 transitions. [2022-11-02 20:42:46,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2541 transitions. [2022-11-02 20:42:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-02 20:42:46,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:46,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:46,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:46,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:46,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash 935081115, now seen corresponding path program 1 times [2022-11-02 20:42:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:46,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291822449] [2022-11-02 20:42:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:46,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:46,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:46,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:46,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:42:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:52,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 12484 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:42:52,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:52,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:52,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:52,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291822449] [2022-11-02 20:42:52,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291822449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:52,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:52,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:42:52,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752590162] [2022-11-02 20:42:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:52,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:42:52,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:52,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:42:52,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:42:52,466 INFO L87 Difference]: Start difference. First operand 1699 states and 2541 transitions. Second operand has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:53,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:53,434 INFO L93 Difference]: Finished difference Result 6761 states and 10125 transitions. [2022-11-02 20:42:53,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:42:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 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 1696 [2022-11-02 20:42:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:53,448 INFO L225 Difference]: With dead ends: 6761 [2022-11-02 20:42:53,448 INFO L226 Difference]: Without dead ends: 5070 [2022-11-02 20:42:53,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1700 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:42:53,453 INFO L413 NwaCegarLoop]: 2519 mSDtfsCounter, 17637 mSDsluCounter, 7527 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17637 SdHoareTripleChecker+Valid, 10046 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:53,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17637 Valid, 10046 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:42:53,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2022-11-02 20:42:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 1703. [2022-11-02 20:42:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1702 states have (on average 1.4958871915393654) internal successors, (2546), 1702 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2546 transitions. [2022-11-02 20:42:53,515 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2546 transitions. Word has length 1696 [2022-11-02 20:42:53,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:53,516 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2546 transitions. [2022-11-02 20:42:53,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2546 transitions. [2022-11-02 20:42:53,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-02 20:42:53,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:53,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:53,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:53,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:53,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:53,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:53,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2118889315, now seen corresponding path program 1 times [2022-11-02 20:42:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:53,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920058408] [2022-11-02 20:42:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:53,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:53,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:53,809 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:53,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:42:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:59,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 12484 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:42:59,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:59,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:59,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:59,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920058408] [2022-11-02 20:42:59,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920058408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:59,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:59,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:42:59,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840927800] [2022-11-02 20:42:59,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:59,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:42:59,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:59,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:42:59,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:42:59,573 INFO L87 Difference]: Start difference. First operand 1703 states and 2546 transitions. Second operand has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:00,563 INFO L93 Difference]: Finished difference Result 6767 states and 10131 transitions. [2022-11-02 20:43:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:43:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 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 1696 [2022-11-02 20:43:00,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:00,580 INFO L225 Difference]: With dead ends: 6767 [2022-11-02 20:43:00,580 INFO L226 Difference]: Without dead ends: 5072 [2022-11-02 20:43:00,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1700 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:43:00,585 INFO L413 NwaCegarLoop]: 2520 mSDtfsCounter, 17631 mSDsluCounter, 7524 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17631 SdHoareTripleChecker+Valid, 10044 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:00,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17631 Valid, 10044 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:43:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5072 states. [2022-11-02 20:43:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5072 to 1705. [2022-11-02 20:43:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 1.4953051643192488) internal successors, (2548), 1704 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2548 transitions. [2022-11-02 20:43:00,648 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2548 transitions. Word has length 1696 [2022-11-02 20:43:00,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:00,649 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2548 transitions. [2022-11-02 20:43:00,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2548 transitions. [2022-11-02 20:43:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-02 20:43:00,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:00,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:00,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:43:00,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:43:00,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:43:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2074576159, now seen corresponding path program 1 times [2022-11-02 20:43:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:43:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047646556] [2022-11-02 20:43:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:00,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:43:00,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:43:00,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:43:00,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:43:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:43:06,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 12484 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:43:06,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:43:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:43:06,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:43:06,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:43:06,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047646556] [2022-11-02 20:43:06,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047646556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:43:06,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:43:06,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:43:06,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451379719] [2022-11-02 20:43:06,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:43:06,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:43:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:43:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:43:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:43:06,568 INFO L87 Difference]: Start difference. First operand 1705 states and 2548 transitions. Second operand has 7 states, 7 states have (on average 242.28571428571428) internal successors, (1696), 7 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:43:08,501 INFO L93 Difference]: Finished difference Result 6790 states and 10159 transitions. [2022-11-02 20:43:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:43:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 242.28571428571428) internal successors, (1696), 7 states have internal predecessors, (1696), 0 states have call successors, (0), 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 1696 [2022-11-02 20:43:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:43:08,511 INFO L225 Difference]: With dead ends: 6790 [2022-11-02 20:43:08,511 INFO L226 Difference]: Without dead ends: 5093 [2022-11-02 20:43:08,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1704 GetRequests, 1690 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:43:08,515 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 20178 mSDsluCounter, 12339 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20178 SdHoareTripleChecker+Valid, 14820 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:43:08,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20178 Valid, 14820 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:43:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2022-11-02 20:43:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 1707. [2022-11-02 20:43:08,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.4947245017584994) internal successors, (2550), 1706 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2550 transitions. [2022-11-02 20:43:08,563 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2550 transitions. Word has length 1696 [2022-11-02 20:43:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:43:08,563 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 2550 transitions. [2022-11-02 20:43:08,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 242.28571428571428) internal successors, (1696), 7 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:43:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2550 transitions. [2022-11-02 20:43:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-11-02 20:43:08,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:43:08,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:43:08,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:43:08,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:43:08,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:43:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:43:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1031671263, now seen corresponding path program 1 times [2022-11-02 20:43:08,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:43:08,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95804594] [2022-11-02 20:43:08,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:43:08,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:43:08,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:43:08,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:43:08,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84d38009-fd22-42a1-8b6a-976111e604c7/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process