./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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 59f3fcefe82932d9599ddaeb009b9f6bf8c17f6b22b4de4159cfdd4dc66707c2
--- 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 20:42:30,859 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:42:30,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:42:30,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:42:30,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:42:30,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:42:30,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:42:30,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:42:30,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:42:30,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:42:30,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:42:30,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:42:30,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:42:30,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:42:30,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:42:30,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:42:30,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:42:30,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:42:30,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:42:30,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:42:30,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:42:30,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:42:30,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:42:30,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:42:30,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:42:30,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:42:30,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:42:30,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:42:30,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:42:30,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:42:30,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:42:30,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:42:30,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:42:30,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:42:30,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:42:30,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:42:30,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:42:30,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:42:30,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:42:30,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:42:30,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:42:30,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf
[2022-11-02 20:42:30,985 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:42:30,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:42:30,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:42:30,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:42:30,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:42:30,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:42:30,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:42:30,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:42:30,990 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:42:30,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:42:30,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:42:30,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:42:30,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:42:30,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:42:30,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:42:30,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:42:30,993 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:42:30,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:42:30,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:42:30,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:42:30,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:42:30,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:30,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:42:30,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:42:30,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:42:30,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:42:30,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:42:30,997 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:42:30,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:42:30,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:42:30,998 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f3fcefe82932d9599ddaeb009b9f6bf8c17f6b22b4de4159cfdd4dc66707c2
[2022-11-02 20:42:31,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:42:31,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:42:31,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:42:31,330 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:42:31,331 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:42:31,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:31,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/a4ab200c0/e175336f468643debba888233de6edaa/FLAGe4fa353d8
[2022-11-02 20:42:32,020 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:42:32,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:32,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/a4ab200c0/e175336f468643debba888233de6edaa/FLAGe4fa353d8
[2022-11-02 20:42:32,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/a4ab200c0/e175336f468643debba888233de6edaa
[2022-11-02 20:42:32,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:42:32,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:42:32,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:32,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:42:32,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:42:32,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9b3cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32, skipping insertion in model container
[2022-11-02 20:42:32,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:42:32,429 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:32,602 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c[1107,1120]
[2022-11-02 20:42:32,728 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:32,745 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:42:32,764 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c[1107,1120]
[2022-11-02 20:42:32,782 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:32,798 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:42:32,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32 WrapperNode
[2022-11-02 20:42:32,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:32,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:32,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:42:32,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:42:32,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,852 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65
[2022-11-02 20:42:32,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:32,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:42:32,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:42:32,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:42:32,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:42:32,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:42:32,888 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:42:32,889 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:42:32,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (1/1) ...
[2022-11-02 20:42:32,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:42:32,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:32,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:42:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:42:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:42:33,120 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:42:33,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:42:33,421 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:42:33,430 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:42:33,430 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:42:33,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:33 BoogieIcfgContainer
[2022-11-02 20:42:33,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:42:33,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:42:33,436 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:42:33,441 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:42:33,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:32" (1/3) ...
[2022-11-02 20:42:33,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd4136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:33, skipping insertion in model container
[2022-11-02 20:42:33,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32" (2/3) ...
[2022-11-02 20:42:33,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd4136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:33, skipping insertion in model container
[2022-11-02 20:42:33,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:33" (3/3) ...
[2022-11-02 20:42:33,445 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:33,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:42:33,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:42:33,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:42:33,551 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;@6c9e41c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:42:33,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:42:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 20:42:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-02 20:42:33,576 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:33,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-02 20:42:33,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:42:33,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2022-11-02 20:42:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:42:33,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886795778]
[2022-11-02 20:42:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:42:33,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:42:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:42:33,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:42:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:42:34,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:42:34,165 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:42:34,167 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:42:34,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:42:34,179 INFO L444 BasicCegarLoop]: Path program histogram: [1]
[2022-11-02 20:42:34,185 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:42:34,215 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null
[2022-11-02 20:42:34,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:42:34 BoogieIcfgContainer
[2022-11-02 20:42:34,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:42:34,235 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:42:34,235 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:42:34,236 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:42:34,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:33" (3/4) ...
[2022-11-02 20:42:34,241 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:42:34,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:42:34,244 INFO L158 Benchmark]: Toolchain (without parser) took 1854.21ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 99.5MB in the beginning and 123.3MB in the end (delta: -23.8MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,245 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:42:34,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.16ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 96.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.93ms. Allocated memory is still 123.7MB. Free memory was 96.5MB in the beginning and 94.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,250 INFO L158 Benchmark]: Boogie Preprocessor took 33.52ms. Allocated memory is still 123.7MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,257 INFO L158 Benchmark]: RCFGBuilder took 544.73ms. Allocated memory is still 123.7MB. Free memory was 93.1MB in the beginning and 79.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,259 INFO L158 Benchmark]: TraceAbstraction took 793.81ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 78.4MB in the beginning and 123.3MB in the end (delta: -44.8MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB.
[2022-11-02 20:42:34,260 INFO L158 Benchmark]: Witness Printer took 6.65ms. Allocated memory is still 151.0MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:42:34,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 409.16ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 96.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.93ms. Allocated memory is still 123.7MB. Free memory was 96.5MB in the beginning and 94.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.52ms. Allocated memory is still 123.7MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 544.73ms. Allocated memory is still 123.7MB. Free memory was 93.1MB in the beginning and 79.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 793.81ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 78.4MB in the beginning and 123.3MB in the end (delta: -44.8MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB.
* Witness Printer took 6.65ms. Allocated memory is still 151.0MB. Free memory is still 123.3MB. 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 72, overapproximation of bitwiseOr at line 70, overapproximation of bitwiseAnd at line 57.
Possible FailurePath:
[L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1);
[L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1);
[L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 20);
[L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (20 - 1);
[L31] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32);
[L32] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1);
[L34] const SORT_4 var_5 = 100;
[L35] const SORT_8 var_10 = 100;
[L36] const SORT_8 var_13 = 200;
[L37] const SORT_1 var_18 = 1;
[L38] const SORT_4 var_22 = 200;
[L40] SORT_1 input_2;
[L41] SORT_1 input_3;
[L43] SORT_4 state_6 = __VERIFIER_nondet_uint() & mask_SORT_4;
[L44] SORT_4 state_23 = __VERIFIER_nondet_uint() & mask_SORT_4;
[L46] SORT_4 init_7_arg_1 = var_5;
[L47] state_6 = init_7_arg_1
[L48] SORT_4 init_24_arg_1 = var_22;
[L49] state_23 = init_24_arg_1
VAL [init_24_arg_1=200, init_7_arg_1=100, mask_SORT_1=1, mask_SORT_4=4294967295, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_4=524288, msb_SORT_8=2147483648, state_23=200, state_6=100, var_10=100, var_13=200, var_18=1, var_22=200, var_5=100]
[L52] input_2 = __VERIFIER_nondet_uchar()
[L53] input_3 = __VERIFIER_nondet_uchar()
[L56] SORT_4 var_9_arg_0 = state_6;
[L57] var_9_arg_0 = var_9_arg_0 & mask_SORT_4
[L58] SORT_8 var_9 = var_9_arg_0;
[L59] SORT_8 var_11_arg_0 = var_9;
[L60] SORT_8 var_11_arg_1 = var_10;
[L61] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1;
[L62] SORT_4 var_12_arg_0 = state_6;
[L63] var_12_arg_0 = var_12_arg_0 & mask_SORT_4
[L64] SORT_8 var_12 = var_12_arg_0;
[L65] SORT_8 var_14_arg_0 = var_12;
[L66] SORT_8 var_14_arg_1 = var_13;
[L67] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1;
[L68] SORT_1 var_15_arg_0 = var_11;
[L69] SORT_1 var_15_arg_1 = var_14;
[L70] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1;
[L71] SORT_1 var_19_arg_0 = var_15;
[L72] SORT_1 var_19 = ~var_19_arg_0;
[L73] SORT_1 var_20_arg_0 = var_18;
[L74] SORT_1 var_20_arg_1 = var_19;
[L75] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1;
[L76] var_20 = var_20 & mask_SORT_1
[L77] SORT_1 bad_21_arg_0 = var_20;
[L78] CALL __VERIFIER_assert(!(bad_21_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 20:42:34,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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 59f3fcefe82932d9599ddaeb009b9f6bf8c17f6b22b4de4159cfdd4dc66707c2
--- 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 20:42:37,322 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:42:37,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:42:37,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:42:37,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:42:37,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:42:37,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:42:37,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:42:37,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:42:37,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:42:37,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:42:37,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:42:37,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:42:37,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:42:37,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:42:37,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:42:37,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:42:37,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:42:37,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:42:37,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:42:37,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:42:37,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:42:37,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:42:37,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:42:37,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:42:37,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:42:37,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:42:37,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:42:37,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:42:37,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:42:37,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:42:37,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:42:37,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:42:37,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:42:37,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:42:37,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:42:37,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:42:37,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:42:37,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:42:37,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:42:37,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:42:37,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-11-02 20:42:37,536 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:42:37,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:42:37,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:42:37,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:42:37,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:42:37,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:42:37,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:42:37,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:42:37,545 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:42:37,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:42:37,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:42:37,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:42:37,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:42:37,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:42:37,548 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:42:37,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:42:37,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:42:37,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:42:37,550 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:42:37,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:42:37,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:42:37,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:42:37,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:42:37,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:37,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:42:37,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:42:37,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:42:37,553 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:42:37,553 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:42:37,554 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:42:37,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:42:37,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:42:37,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:42:37,555 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f3fcefe82932d9599ddaeb009b9f6bf8c17f6b22b4de4159cfdd4dc66707c2
[2022-11-02 20:42:38,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:42:38,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:42:38,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:42:38,143 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:42:38,144 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:42:38,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:38,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/5b139ae85/babe99b2eefb492c96628150e6fb421a/FLAGfad876995
[2022-11-02 20:42:39,014 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:42:39,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:39,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/5b139ae85/babe99b2eefb492c96628150e6fb421a/FLAGfad876995
[2022-11-02 20:42:39,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/data/5b139ae85/babe99b2eefb492c96628150e6fb421a
[2022-11-02 20:42:39,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:42:39,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:42:39,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:39,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:42:39,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:42:39,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104576c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39, skipping insertion in model container
[2022-11-02 20:42:39,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:42:39,418 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:39,623 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c[1107,1120]
[2022-11-02 20:42:39,672 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:39,676 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:42:39,718 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_6fd35e6a-773a-471e-9456-5dc67ba50ab4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_two.c[1107,1120]
[2022-11-02 20:42:39,764 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:39,779 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:42:39,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39 WrapperNode
[2022-11-02 20:42:39,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:39,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:39,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:42:39,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:42:39,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,824 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65
[2022-11-02 20:42:39,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:39,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:42:39,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:42:39,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:42:39,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:42:39,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:42:39,860 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:42:39,861 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:42:39,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (1/1) ...
[2022-11-02 20:42:39,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:39,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:42:39,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:39,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:42:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:42:39,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:42:40,077 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:42:40,079 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:42:40,357 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:42:40,377 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:42:40,378 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:42:40,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:40 BoogieIcfgContainer
[2022-11-02 20:42:40,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:42:40,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:42:40,383 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:42:40,387 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:42:40,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:39" (1/3) ...
[2022-11-02 20:42:40,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edddb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:40, skipping insertion in model container
[2022-11-02 20:42:40,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:39" (2/3) ...
[2022-11-02 20:42:40,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edddb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:40, skipping insertion in model container
[2022-11-02 20:42:40,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:40" (3/3) ...
[2022-11-02 20:42:40,407 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.swap_two.c
[2022-11-02 20:42:40,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:42:40,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:42:40,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:42:40,583 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;@18121805, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:42:40,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:42:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 20:42:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-02 20:42:40,620 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:40,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-02 20:42:40,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:42:40,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2022-11-02 20:42:40,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:40,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492688713]
[2022-11-02 20:42:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:42:40,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:40,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:40,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:40,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:42:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:42:40,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 21 conjunts are in the unsatisfiable core
[2022-11-02 20:42:40,856 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:41,290 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 20:42:41,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:42:41,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492688713]
[2022-11-02 20:42:41,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492688713] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:42:41,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:42:41,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:42:41,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339839308]
[2022-11-02 20:42:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:42:41,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:42:41,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:42:41,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:42:41,360 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:42:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:41,466 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions.
[2022-11-02 20:42:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:42:41,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2022-11-02 20:42:41,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:41,491 INFO L225 Difference]: With dead ends: 20
[2022-11-02 20:42:41,505 INFO L226 Difference]: Without dead ends: 11
[2022-11-02 20:42:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:42:41,514 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:41,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:42:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2022-11-02 20:42:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9.
[2022-11-02 20:42:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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 20:42:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2022-11-02 20:42:41,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5
[2022-11-02 20:42:41,561 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:41,561 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2022-11-02 20:42:41,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:42:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2022-11-02 20:42:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-02 20:42:41,562 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:41,562 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:42:41,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:42:41,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:42:41,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:42:41,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times
[2022-11-02 20:42:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:41,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917066659]
[2022-11-02 20:42:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:42:41,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:41,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:41,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:41,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:42:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:42:41,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 23 conjunts are in the unsatisfiable core
[2022-11-02 20:42:41,915 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:42:42,207 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:42:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:42:42,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:42,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917066659]
[2022-11-02 20:42:42,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917066659] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:42:42,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:42:42,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2022-11-02 20:42:42,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326078888]
[2022-11-02 20:42:42,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:42:42,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:42:42,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:42:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:42:42,711 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 20:42:42,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:42,818 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions.
[2022-11-02 20:42:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:42:42,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 8
[2022-11-02 20:42:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:42,820 INFO L225 Difference]: With dead ends: 16
[2022-11-02 20:42:42,820 INFO L226 Difference]: Without dead ends: 14
[2022-11-02 20:42:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:42:42,824 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:42,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time]
[2022-11-02 20:42:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2022-11-02 20:42:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12.
[2022-11-02 20:42:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 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 20:42:42,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2022-11-02 20:42:42,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8
[2022-11-02 20:42:42,844 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:42,845 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2022-11-02 20:42:42,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 20:42:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2022-11-02 20:42:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-02 20:42:42,851 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:42,852 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-11-02 20:42:42,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:42:43,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:42:43,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:42:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times
[2022-11-02 20:42:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:43,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638290002]
[2022-11-02 20:42:43,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-02 20:42:43,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:43,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:43,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:43,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-02 20:42:43,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-11-02 20:42:43,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:42:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-11-02 20:42:43,211 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:42:43,472 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:42:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 20:42:43,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:43,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638290002]
[2022-11-02 20:42:43,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638290002] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:42:43,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:42:43,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2022-11-02 20:42:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6320364]
[2022-11-02 20:42:43,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:42:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:42:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:42:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:42:43,902 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20:42:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:44,070 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions.
[2022-11-02 20:42:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:42:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 11
[2022-11-02 20:42:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:44,071 INFO L225 Difference]: With dead ends: 17
[2022-11-02 20:42:44,072 INFO L226 Difference]: Without dead ends: 15
[2022-11-02 20:42:44,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2022-11-02 20:42:44,073 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:44,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 7 Unchecked, 0.1s Time]
[2022-11-02 20:42:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2022-11-02 20:42:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2022-11-02 20:42:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 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 20:42:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2022-11-02 20:42:44,083 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11
[2022-11-02 20:42:44,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:44,084 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2022-11-02 20:42:44,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20:42:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2022-11-02 20:42:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-11-02 20:42:44,085 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:44,086 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1]
[2022-11-02 20:42:44,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0
[2022-11-02 20:42:44,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:42:44,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:42:44,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times
[2022-11-02 20:42:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:44,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900116656]
[2022-11-02 20:42:44,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-02 20:42:44,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:44,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:44,309 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:44,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-02 20:42:44,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2022-11-02 20:42:44,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:42:44,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 27 conjunts are in the unsatisfiable core
[2022-11-02 20:42:44,462 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-11-02 20:42:44,721 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:42:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-11-02 20:42:45,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:45,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900116656]
[2022-11-02 20:42:45,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900116656] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:42:45,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:42:45,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2022-11-02 20:42:45,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556786643]
[2022-11-02 20:42:45,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:42:45,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:42:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:45,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:42:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:42:45,183 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20:42:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:45,349 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2022-11-02 20:42:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:42:45,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 14
[2022-11-02 20:42:45,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:45,351 INFO L225 Difference]: With dead ends: 15
[2022-11-02 20:42:45,351 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 20:42:45,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2022-11-02 20:42:45,352 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:45,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time]
[2022-11-02 20:42:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:42:45,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:42:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:42:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:42:45,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2022-11-02 20:42:45,354 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:45,355 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:42:45,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20:42:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:42:45,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:42:45,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:42:45,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:42:45,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:42:45,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 20:42:45,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 20:42:45,703 INFO L895 garLoopResultBuilder]: At program point L50-2(lines 50 85) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv200 32) |ULTIMATE.start_main_~var_13~0#1|)) (.cse2 (= (_ bv100 32) |ULTIMATE.start_main_~var_10~0#1|)) (.cse3 (= (_ bv1048575 32) |ULTIMATE.start_main_~mask_SORT_4~0#1|))) (or (and .cse0 .cse1 .cse2 (= (_ bv100 32) |ULTIMATE.start_main_~state_6~0#1|) .cse3 (= (_ bv200 32) |ULTIMATE.start_main_~state_23~0#1|)) (and .cse0 (= (_ bv200 32) |ULTIMATE.start_main_~state_6~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2 .cse3 (= (_ bv100 32) |ULTIMATE.start_main_~state_23~0#1|))))
[2022-11-02 20:42:45,703 INFO L899 garLoopResultBuilder]: For program point L50-3(lines 50 85) no Hoare annotation was computed.
[2022-11-02 20:42:45,703 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 20:42:45,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 20:42:45,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 20:42:45,704 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed.
[2022-11-02 20:42:45,704 INFO L895 garLoopResultBuilder]: At program point L86(lines 22 87) the Hoare annotation is: false
[2022-11-02 20:42:45,704 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed.
[2022-11-02 20:42:45,705 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed.
[2022-11-02 20:42:45,705 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed.
[2022-11-02 20:42:45,709 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1]
[2022-11-02 20:42:45,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:42:45,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:42:45 BoogieIcfgContainer
[2022-11-02 20:42:45,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:42:45,743 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:42:45,743 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:42:45,746 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:42:45,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:40" (3/4) ...
[2022-11-02 20:42:45,751 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:42:45,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2022-11-02 20:42:45,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2022-11-02 20:42:45,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:42:45,819 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78)
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:59)
at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:153)
at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.lambda$2(CorrectnessWitnessGenerator.java:95)
at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237)
at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106)
at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.makeGraphMLString(CorrectnessWitnessGenerator.java:115)
at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:158)
at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:138)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:131)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-11-02 20:42:45,824 INFO L158 Benchmark]: Toolchain (without parser) took 6462.97ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 62.8MB in the beginning and 83.3MB in the end (delta: -20.5MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,824 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 98.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:42:45,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.72ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 81.9MB in the end (delta: -19.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 98.6MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:42:45,826 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 98.6MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,827 INFO L158 Benchmark]: RCFGBuilder took 520.43ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 68.3MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,828 INFO L158 Benchmark]: TraceAbstraction took 5356.21ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.7MB in the beginning and 86.4MB in the end (delta: -18.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,828 INFO L158 Benchmark]: Witness Printer took 80.69ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:42:45,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.42ms. Allocated memory is still 98.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 410.72ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 81.9MB in the end (delta: -19.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.62ms. Allocated memory is still 98.6MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.92ms. Allocated memory is still 98.6MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 520.43ms. Allocated memory is still 98.6MB. Free memory was 79.1MB in the beginning and 68.3MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 5356.21ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.7MB in the beginning and 86.4MB in the end (delta: -18.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB.
* Witness Printer took 80.69ms. Allocated memory is still 127.9MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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
- PositiveResult [Line: 20]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 27 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 64 ConstructedInterpolants, 21 QuantifiedInterpolants, 1353 SizeOfPredicates, 90 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 10/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 22]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 50]: Loop Invariant
Derived loop invariant: (((((1bv8 == mask_SORT_1 && 200bv32 == var_13) && 100bv32 == var_10) && 100bv32 == state_6) && 1048575bv32 == mask_SORT_4) && 200bv32 == state_23) || ((((((1bv8 == mask_SORT_1 && 200bv32 == state_6) && cond == 1bv32) && 200bv32 == var_13) && 100bv32 == var_10) && 1048575bv32 == mask_SORT_4) && 100bv32 == state_23)
* Results from de.uni_freiburg.informatik.ultimate.witnessprinter:
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2022-11-02 20:42:45,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd35e6a-773a-471e-9456-5dc67ba50ab4/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
Writing output log to file Ultimate.log
Result:
ERROR: ExceptionOrErrorResult: NullPointerException: null