./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-015.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-015.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0 --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 32bit --witnessprinter.graph.data.programhash eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:21:05,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:21:05,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:21:05,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:21:05,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:21:05,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:21:05,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:21:05,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:21:05,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:21:05,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:21:05,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:21:05,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:21:05,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:21:05,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:21:05,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:21:05,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:21:05,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:21:05,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:21:05,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:21:05,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:21:05,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:21:05,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:21:05,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:21:05,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:21:05,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:21:05,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:21:06,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:21:06,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:21:06,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:21:06,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:21:06,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:21:06,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:21:06,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:21:06,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:21:06,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:21:06,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:21:06,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:21:06,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:21:06,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:21:06,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:21:06,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:21:06,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:21:06,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:21:06,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:21:06,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:21:06,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:21:06,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:21:06,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:21:06,073 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:21:06,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:21:06,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:21:06,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:21:06,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:21:06,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:21:06,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:21:06,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:21:06,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:21:06,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:21:06,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:21:06,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:21:06,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:21:06,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:21:06,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:21:06,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:21:06,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:21:06,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:21:06,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:21:06,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:21:06,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:21:06,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:21:06,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:21:06,079 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:21:06,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:21:06,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:21:06,080 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_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 [2021-11-22 16:21:06,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:21:06,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:21:06,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:21:06,369 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:21:06,370 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:21:06,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/xcsp/Dubois-015.c [2021-11-22 16:21:06,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/dcecfdbb8/bc3374ba5d1d4dda9a5739afd0fbdd21/FLAGb5cc1187a [2021-11-22 16:21:07,055 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:21:07,056 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c [2021-11-22 16:21:07,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/dcecfdbb8/bc3374ba5d1d4dda9a5739afd0fbdd21/FLAGb5cc1187a [2021-11-22 16:21:07,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/dcecfdbb8/bc3374ba5d1d4dda9a5739afd0fbdd21 [2021-11-22 16:21:07,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:21:07,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:21:07,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:21:07,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:21:07,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:21:07,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:07,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a9da65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07, skipping insertion in model container [2021-11-22 16:21:07,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:07,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:21:07,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:21:07,751 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_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c[10980,10993] [2021-11-22 16:21:07,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:21:07,776 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:21:07,896 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_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c[10980,10993] [2021-11-22 16:21:07,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:21:07,912 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:21:07,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07 WrapperNode [2021-11-22 16:21:07,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:21:07,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:21:07,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:21:07,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:21:07,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:07,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,025 INFO L137 Inliner]: procedures = 13, calls = 127, calls flagged for inlining = 122, calls inlined = 122, statements flattened = 677 [2021-11-22 16:21:08,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:21:08,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:21:08,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:21:08,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:21:08,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:21:08,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:21:08,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:21:08,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:21:08,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (1/1) ... [2021-11-22 16:21:08,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:21:08,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:21:08,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:21:08,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:21:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:21:08,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:21:08,412 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:21:08,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:21:09,190 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:21:09,212 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:21:09,213 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 16:21:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:21:09 BoogieIcfgContainer [2021-11-22 16:21:09,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:21:09,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:21:09,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:21:09,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:21:09,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:21:07" (1/3) ... [2021-11-22 16:21:09,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c15ba24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:21:09, skipping insertion in model container [2021-11-22 16:21:09,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:07" (2/3) ... [2021-11-22 16:21:09,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c15ba24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:21:09, skipping insertion in model container [2021-11-22 16:21:09,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:21:09" (3/3) ... [2021-11-22 16:21:09,239 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-015.c [2021-11-22 16:21:09,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:21:09,258 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:21:09,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:21:09,333 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:21:09,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:21:09,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 245 states have (on average 1.493877551020408) internal successors, (366), 246 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 16:21:09,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:09,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:09,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:09,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1353766438, now seen corresponding path program 1 times [2021-11-22 16:21:09,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:09,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091061205] [2021-11-22 16:21:09,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:09,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:09,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:21:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091061205] [2021-11-22 16:21:09,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091061205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:09,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:09,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:21:09,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963215330] [2021-11-22 16:21:09,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:09,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:21:09,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:21:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:21:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:21:09,661 INFO L87 Difference]: Start difference. First operand has 247 states, 245 states have (on average 1.493877551020408) internal successors, (366), 246 states have internal predecessors, (366), 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 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:09,700 INFO L93 Difference]: Finished difference Result 488 states and 726 transitions. [2021-11-22 16:21:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:21:09,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 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 243 [2021-11-22 16:21:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:09,714 INFO L225 Difference]: With dead ends: 488 [2021-11-22 16:21:09,714 INFO L226 Difference]: Without dead ends: 244 [2021-11-22 16:21:09,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:21:09,723 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:09,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:21:09,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-22 16:21:09,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-22 16:21:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.0) internal successors, (243), 243 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 243 transitions. [2021-11-22 16:21:09,774 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 243 transitions. Word has length 243 [2021-11-22 16:21:09,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:09,774 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 243 transitions. [2021-11-22 16:21:09,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 243 transitions. [2021-11-22 16:21:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 16:21:09,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:09,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:09,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:21:09,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1028669560, now seen corresponding path program 1 times [2021-11-22 16:21:09,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:21:09,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059657151] [2021-11-22 16:21:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:09,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:21:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:21:10,323 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:21:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:21:10,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:21:10,782 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 16:21:10,784 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:21:10,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:21:10,791 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 16:21:10,797 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:21:11,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:21:11 BoogieIcfgContainer [2021-11-22 16:21:11,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:21:11,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:21:11,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:21:11,015 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:21:11,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:21:09" (3/4) ... [2021-11-22 16:21:11,019 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:21:11,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:21:11,021 INFO L158 Benchmark]: Toolchain (without parser) took 3655.27ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 82.5MB in the beginning and 99.2MB in the end (delta: -16.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,022 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:21:11,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.68ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 77.6MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.30ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 71.4MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,029 INFO L158 Benchmark]: Boogie Preprocessor took 131.32ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 67.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,029 INFO L158 Benchmark]: RCFGBuilder took 1057.67ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 84.7MB in the end (delta: -17.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,030 INFO L158 Benchmark]: TraceAbstraction took 1781.74ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 84.2MB in the beginning and 100.2MB in the end (delta: -16.0MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-11-22 16:21:11,031 INFO L158 Benchmark]: Witness Printer took 6.01ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 99.2MB in the end (delta: 958.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:21:11,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.68ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 77.6MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.30ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 71.4MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.32ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 67.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1057.67ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 84.7MB in the end (delta: -17.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1781.74ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 84.2MB in the beginning and 100.2MB in the end (delta: -16.0MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 6.01ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 99.2MB in the end (delta: 958.1kB). 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: 326]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 322. Possible FailurePath: [L22] int cond0; [L23] int dummy = 0; [L24] int N; [L25] int var0; [L26] var0 = __VERIFIER_nondet_int() [L27] CALL assume(var0 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L27] RET assume(var0 >= 0) [L28] CALL assume(var0 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume(var0 <= 1) [L29] int var1; [L30] var1 = __VERIFIER_nondet_int() [L31] CALL assume(var1 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L31] RET assume(var1 >= 0) [L32] CALL assume(var1 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L32] RET assume(var1 <= 1) [L33] int var2; [L34] var2 = __VERIFIER_nondet_int() [L35] CALL assume(var2 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L35] RET assume(var2 >= 0) [L36] CALL assume(var2 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume(var2 <= 1) [L37] int var3; [L38] var3 = __VERIFIER_nondet_int() [L39] CALL assume(var3 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L39] RET assume(var3 >= 0) [L40] CALL assume(var3 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume(var3 <= 1) [L41] int var4; [L42] var4 = __VERIFIER_nondet_int() [L43] CALL assume(var4 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L43] RET assume(var4 >= 0) [L44] CALL assume(var4 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L44] RET assume(var4 <= 1) [L45] int var5; [L46] var5 = __VERIFIER_nondet_int() [L47] CALL assume(var5 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L47] RET assume(var5 >= 0) [L48] CALL assume(var5 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L48] RET assume(var5 <= 1) [L49] int var6; [L50] var6 = __VERIFIER_nondet_int() [L51] CALL assume(var6 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L51] RET assume(var6 >= 0) [L52] CALL assume(var6 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L52] RET assume(var6 <= 1) [L53] int var7; [L54] var7 = __VERIFIER_nondet_int() [L55] CALL assume(var7 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L55] RET assume(var7 >= 0) [L56] CALL assume(var7 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L56] RET assume(var7 <= 1) [L57] int var8; [L58] var8 = __VERIFIER_nondet_int() [L59] CALL assume(var8 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L59] RET assume(var8 >= 0) [L60] CALL assume(var8 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L60] RET assume(var8 <= 1) [L61] int var9; [L62] var9 = __VERIFIER_nondet_int() [L63] CALL assume(var9 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L63] RET assume(var9 >= 0) [L64] CALL assume(var9 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L64] RET assume(var9 <= 1) [L65] int var10; [L66] var10 = __VERIFIER_nondet_int() [L67] CALL assume(var10 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L67] RET assume(var10 >= 0) [L68] CALL assume(var10 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L68] RET assume(var10 <= 1) [L69] int var11; [L70] var11 = __VERIFIER_nondet_int() [L71] CALL assume(var11 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L71] RET assume(var11 >= 0) [L72] CALL assume(var11 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L72] RET assume(var11 <= 1) [L73] int var12; [L74] var12 = __VERIFIER_nondet_int() [L75] CALL assume(var12 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L75] RET assume(var12 >= 0) [L76] CALL assume(var12 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L76] RET assume(var12 <= 1) [L77] int var13; [L78] var13 = __VERIFIER_nondet_int() [L79] CALL assume(var13 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L79] RET assume(var13 >= 0) [L80] CALL assume(var13 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L80] RET assume(var13 <= 1) [L81] int var14; [L82] var14 = __VERIFIER_nondet_int() [L83] CALL assume(var14 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L83] RET assume(var14 >= 0) [L84] CALL assume(var14 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L84] RET assume(var14 <= 1) [L85] int var15; [L86] var15 = __VERIFIER_nondet_int() [L87] CALL assume(var15 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L87] RET assume(var15 >= 0) [L88] CALL assume(var15 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L88] RET assume(var15 <= 1) [L89] int var16; [L90] var16 = __VERIFIER_nondet_int() [L91] CALL assume(var16 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume(var16 >= 0) [L92] CALL assume(var16 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L92] RET assume(var16 <= 1) [L93] int var17; [L94] var17 = __VERIFIER_nondet_int() [L95] CALL assume(var17 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L95] RET assume(var17 >= 0) [L96] CALL assume(var17 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L96] RET assume(var17 <= 1) [L97] int var18; [L98] var18 = __VERIFIER_nondet_int() [L99] CALL assume(var18 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L99] RET assume(var18 >= 0) [L100] CALL assume(var18 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L100] RET assume(var18 <= 1) [L101] int var19; [L102] var19 = __VERIFIER_nondet_int() [L103] CALL assume(var19 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L103] RET assume(var19 >= 0) [L104] CALL assume(var19 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L104] RET assume(var19 <= 1) [L105] int var20; [L106] var20 = __VERIFIER_nondet_int() [L107] CALL assume(var20 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L107] RET assume(var20 >= 0) [L108] CALL assume(var20 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L108] RET assume(var20 <= 1) [L109] int var21; [L110] var21 = __VERIFIER_nondet_int() [L111] CALL assume(var21 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L111] RET assume(var21 >= 0) [L112] CALL assume(var21 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L112] RET assume(var21 <= 1) [L113] int var22; [L114] var22 = __VERIFIER_nondet_int() [L115] CALL assume(var22 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L115] RET assume(var22 >= 0) [L116] CALL assume(var22 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L116] RET assume(var22 <= 1) [L117] int var23; [L118] var23 = __VERIFIER_nondet_int() [L119] CALL assume(var23 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L119] RET assume(var23 >= 0) [L120] CALL assume(var23 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L120] RET assume(var23 <= 1) [L121] int var24; [L122] var24 = __VERIFIER_nondet_int() [L123] CALL assume(var24 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L123] RET assume(var24 >= 0) [L124] CALL assume(var24 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L124] RET assume(var24 <= 1) [L125] int var25; [L126] var25 = __VERIFIER_nondet_int() [L127] CALL assume(var25 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L127] RET assume(var25 >= 0) [L128] CALL assume(var25 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L128] RET assume(var25 <= 1) [L129] int var26; [L130] var26 = __VERIFIER_nondet_int() [L131] CALL assume(var26 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L131] RET assume(var26 >= 0) [L132] CALL assume(var26 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L132] RET assume(var26 <= 1) [L133] int var27; [L134] var27 = __VERIFIER_nondet_int() [L135] CALL assume(var27 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L135] RET assume(var27 >= 0) [L136] CALL assume(var27 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L136] RET assume(var27 <= 1) [L137] int var28; [L138] var28 = __VERIFIER_nondet_int() [L139] CALL assume(var28 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L139] RET assume(var28 >= 0) [L140] CALL assume(var28 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L140] RET assume(var28 <= 1) [L141] int var29; [L142] var29 = __VERIFIER_nondet_int() [L143] CALL assume(var29 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L143] RET assume(var29 >= 0) [L144] CALL assume(var29 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L144] RET assume(var29 <= 1) [L145] int var30; [L146] var30 = __VERIFIER_nondet_int() [L147] CALL assume(var30 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L147] RET assume(var30 >= 0) [L148] CALL assume(var30 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L148] RET assume(var30 <= 1) [L149] int var31; [L150] var31 = __VERIFIER_nondet_int() [L151] CALL assume(var31 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L151] RET assume(var31 >= 0) [L152] CALL assume(var31 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L152] RET assume(var31 <= 1) [L153] int var32; [L154] var32 = __VERIFIER_nondet_int() [L155] CALL assume(var32 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L155] RET assume(var32 >= 0) [L156] CALL assume(var32 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L156] RET assume(var32 <= 1) [L157] int var33; [L158] var33 = __VERIFIER_nondet_int() [L159] CALL assume(var33 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L159] RET assume(var33 >= 0) [L160] CALL assume(var33 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L160] RET assume(var33 <= 1) [L161] int var34; [L162] var34 = __VERIFIER_nondet_int() [L163] CALL assume(var34 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L163] RET assume(var34 >= 0) [L164] CALL assume(var34 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L164] RET assume(var34 <= 1) [L165] int var35; [L166] var35 = __VERIFIER_nondet_int() [L167] CALL assume(var35 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L167] RET assume(var35 >= 0) [L168] CALL assume(var35 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L168] RET assume(var35 <= 1) [L169] int var36; [L170] var36 = __VERIFIER_nondet_int() [L171] CALL assume(var36 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L171] RET assume(var36 >= 0) [L172] CALL assume(var36 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L172] RET assume(var36 <= 1) [L173] int var37; [L174] var37 = __VERIFIER_nondet_int() [L175] CALL assume(var37 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L175] RET assume(var37 >= 0) [L176] CALL assume(var37 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L176] RET assume(var37 <= 1) [L177] int var38; [L178] var38 = __VERIFIER_nondet_int() [L179] CALL assume(var38 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L179] RET assume(var38 >= 0) [L180] CALL assume(var38 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L180] RET assume(var38 <= 1) [L181] int var39; [L182] var39 = __VERIFIER_nondet_int() [L183] CALL assume(var39 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L183] RET assume(var39 >= 0) [L184] CALL assume(var39 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L184] RET assume(var39 <= 1) [L185] int var40; [L186] var40 = __VERIFIER_nondet_int() [L187] CALL assume(var40 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L187] RET assume(var40 >= 0) [L188] CALL assume(var40 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L188] RET assume(var40 <= 1) [L189] int var41; [L190] var41 = __VERIFIER_nondet_int() [L191] CALL assume(var41 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L191] RET assume(var41 >= 0) [L192] CALL assume(var41 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L192] RET assume(var41 <= 1) [L193] int var42; [L194] var42 = __VERIFIER_nondet_int() [L195] CALL assume(var42 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L195] RET assume(var42 >= 0) [L196] CALL assume(var42 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L196] RET assume(var42 <= 1) [L197] int var43; [L198] var43 = __VERIFIER_nondet_int() [L199] CALL assume(var43 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L199] RET assume(var43 >= 0) [L200] CALL assume(var43 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L200] RET assume(var43 <= 1) [L201] int var44; [L202] var44 = __VERIFIER_nondet_int() [L203] CALL assume(var44 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L203] RET assume(var44 >= 0) [L204] CALL assume(var44 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L204] RET assume(var44 <= 1) [L205] int myvar0 = 1; [L206-L209] CALL assume((var28 == 0 & var29 == 0 & var0 == 1) | (var28 == 0 & var29 == 1 & var0 == 0) | (var28 == 1 & var29 == 0 & var0 == 0) | (var28 == 1 & var29 == 1 & var0 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=54, cond=54] [L206-L209] RET assume((var28 == 0 & var29 == 0 & var0 == 1) | (var28 == 0 & var29 == 1 & var0 == 0) | (var28 == 1 & var29 == 0 & var0 == 0) | (var28 == 1 & var29 == 1 & var0 == 1) | 0) [L210-L213] CALL assume((var1 == 0 & var31 == 0 & var2 == 1) | (var1 == 0 & var31 == 1 & var2 == 0) | (var1 == 1 & var31 == 0 & var2 == 0) | (var1 == 1 & var31 == 1 & var2 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=70, cond=70] [L210-L213] RET assume((var1 == 0 & var31 == 0 & var2 == 1) | (var1 == 0 & var31 == 1 & var2 == 0) | (var1 == 1 & var31 == 0 & var2 == 0) | (var1 == 1 & var31 == 1 & var2 == 1) | 0) [L214-L217] CALL assume((var2 == 0 & var32 == 0 & var3 == 1) | (var2 == 0 & var32 == 1 & var3 == 0) | (var2 == 1 & var32 == 0 & var3 == 0) | (var2 == 1 & var32 == 1 & var3 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=74, cond=74] [L214-L217] RET assume((var2 == 0 & var32 == 0 & var3 == 1) | (var2 == 0 & var32 == 1 & var3 == 0) | (var2 == 1 & var32 == 0 & var3 == 0) | (var2 == 1 & var32 == 1 & var3 == 1) | 0) [L218-L221] CALL assume((var3 == 0 & var33 == 0 & var4 == 1) | (var3 == 0 & var33 == 1 & var4 == 0) | (var3 == 1 & var33 == 0 & var4 == 0) | (var3 == 1 & var33 == 1 & var4 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=51, cond=51] [L218-L221] RET assume((var3 == 0 & var33 == 0 & var4 == 1) | (var3 == 0 & var33 == 1 & var4 == 0) | (var3 == 1 & var33 == 0 & var4 == 0) | (var3 == 1 & var33 == 1 & var4 == 1) | 0) [L222-L225] CALL assume((var4 == 0 & var34 == 0 & var5 == 1) | (var4 == 0 & var34 == 1 & var5 == 0) | (var4 == 1 & var34 == 0 & var5 == 0) | (var4 == 1 & var34 == 1 & var5 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=53, cond=53] [L222-L225] RET assume((var4 == 0 & var34 == 0 & var5 == 1) | (var4 == 0 & var34 == 1 & var5 == 0) | (var4 == 1 & var34 == 0 & var5 == 0) | (var4 == 1 & var34 == 1 & var5 == 1) | 0) [L226-L229] CALL assume((var5 == 0 & var35 == 0 & var6 == 1) | (var5 == 0 & var35 == 1 & var6 == 0) | (var5 == 1 & var35 == 0 & var6 == 0) | (var5 == 1 & var35 == 1 & var6 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=73, cond=73] [L226-L229] RET assume((var5 == 0 & var35 == 0 & var6 == 1) | (var5 == 0 & var35 == 1 & var6 == 0) | (var5 == 1 & var35 == 0 & var6 == 0) | (var5 == 1 & var35 == 1 & var6 == 1) | 0) [L230-L233] CALL assume((var6 == 0 & var36 == 0 & var7 == 1) | (var6 == 0 & var36 == 1 & var7 == 0) | (var6 == 1 & var36 == 0 & var7 == 0) | (var6 == 1 & var36 == 1 & var7 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=62, cond=62] [L230-L233] RET assume((var6 == 0 & var36 == 0 & var7 == 1) | (var6 == 0 & var36 == 1 & var7 == 0) | (var6 == 1 & var36 == 0 & var7 == 0) | (var6 == 1 & var36 == 1 & var7 == 1) | 0) [L234-L237] CALL assume((var7 == 0 & var37 == 0 & var8 == 1) | (var7 == 0 & var37 == 1 & var8 == 0) | (var7 == 1 & var37 == 0 & var8 == 0) | (var7 == 1 & var37 == 1 & var8 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=75, cond=75] [L234-L237] RET assume((var7 == 0 & var37 == 0 & var8 == 1) | (var7 == 0 & var37 == 1 & var8 == 0) | (var7 == 1 & var37 == 0 & var8 == 0) | (var7 == 1 & var37 == 1 & var8 == 1) | 0) [L238-L241] CALL assume((var8 == 0 & var38 == 0 & var9 == 1) | (var8 == 0 & var38 == 1 & var9 == 0) | (var8 == 1 & var38 == 0 & var9 == 0) | (var8 == 1 & var38 == 1 & var9 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=63, cond=63] [L238-L241] RET assume((var8 == 0 & var38 == 0 & var9 == 1) | (var8 == 0 & var38 == 1 & var9 == 0) | (var8 == 1 & var38 == 0 & var9 == 0) | (var8 == 1 & var38 == 1 & var9 == 1) | 0) [L242-L245] CALL assume((var9 == 0 & var39 == 0 & var10 == 1) | (var9 == 0 & var39 == 1 & var10 == 0) | (var9 == 1 & var39 == 0 & var10 == 0) | (var9 == 1 & var39 == 1 & var10 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=50, cond=50] [L242-L245] RET assume((var9 == 0 & var39 == 0 & var10 == 1) | (var9 == 0 & var39 == 1 & var10 == 0) | (var9 == 1 & var39 == 0 & var10 == 0) | (var9 == 1 & var39 == 1 & var10 == 1) | 0) [L246-L249] CALL assume((var10 == 0 & var40 == 0 & var11 == 1) | (var10 == 0 & var40 == 1 & var11 == 0) | (var10 == 1 & var40 == 0 & var11 == 0) | (var10 == 1 & var40 == 1 & var11 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=67, cond=67] [L246-L249] RET assume((var10 == 0 & var40 == 0 & var11 == 1) | (var10 == 0 & var40 == 1 & var11 == 0) | (var10 == 1 & var40 == 0 & var11 == 0) | (var10 == 1 & var40 == 1 & var11 == 1) | 0) [L250-L253] CALL assume((var11 == 0 & var41 == 0 & var12 == 1) | (var11 == 0 & var41 == 1 & var12 == 0) | (var11 == 1 & var41 == 0 & var12 == 0) | (var11 == 1 & var41 == 1 & var12 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=52, cond=52] [L250-L253] RET assume((var11 == 0 & var41 == 0 & var12 == 1) | (var11 == 0 & var41 == 1 & var12 == 0) | (var11 == 1 & var41 == 0 & var12 == 0) | (var11 == 1 & var41 == 1 & var12 == 1) | 0) [L254-L257] CALL assume((var12 == 0 & var42 == 0 & var13 == 1) | (var12 == 0 & var42 == 1 & var13 == 0) | (var12 == 1 & var42 == 0 & var13 == 0) | (var12 == 1 & var42 == 1 & var13 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=66, cond=66] [L254-L257] RET assume((var12 == 0 & var42 == 0 & var13 == 1) | (var12 == 0 & var42 == 1 & var13 == 0) | (var12 == 1 & var42 == 0 & var13 == 0) | (var12 == 1 & var42 == 1 & var13 == 1) | 0) [L258-L261] CALL assume((var0 == 0 & var30 == 0 & var1 == 1) | (var0 == 0 & var30 == 1 & var1 == 0) | (var0 == 1 & var30 == 0 & var1 == 0) | (var0 == 1 & var30 == 1 & var1 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=68, cond=68] [L258-L261] RET assume((var0 == 0 & var30 == 0 & var1 == 1) | (var0 == 0 & var30 == 1 & var1 == 0) | (var0 == 1 & var30 == 0 & var1 == 0) | (var0 == 1 & var30 == 1 & var1 == 1) | 0) [L262-L265] CALL assume((var14 == 0 & var43 == 0 & var44 == 1) | (var14 == 0 & var43 == 1 & var44 == 0) | (var14 == 1 & var43 == 0 & var44 == 0) | (var14 == 1 & var43 == 1 & var44 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=78, cond=78] [L262-L265] RET assume((var14 == 0 & var43 == 0 & var44 == 1) | (var14 == 0 & var43 == 1 & var44 == 0) | (var14 == 1 & var43 == 0 & var44 == 0) | (var14 == 1 & var43 == 1 & var44 == 1) | 0) [L266-L269] CALL assume((var13 == 0 & var43 == 0 & var44 == 1) | (var13 == 0 & var43 == 1 & var44 == 0) | (var13 == 1 & var43 == 0 & var44 == 0) | (var13 == 1 & var43 == 1 & var44 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=57, cond=57] [L266-L269] RET assume((var13 == 0 & var43 == 0 & var44 == 1) | (var13 == 0 & var43 == 1 & var44 == 0) | (var13 == 1 & var43 == 0 & var44 == 0) | (var13 == 1 & var43 == 1 & var44 == 1) | 0) [L270-L273] CALL assume((var16 == 0 & var41 == 0 & var15 == 1) | (var16 == 0 & var41 == 1 & var15 == 0) | (var16 == 1 & var41 == 0 & var15 == 0) | (var16 == 1 & var41 == 1 & var15 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=69, cond=69] [L270-L273] RET assume((var16 == 0 & var41 == 0 & var15 == 1) | (var16 == 0 & var41 == 1 & var15 == 0) | (var16 == 1 & var41 == 0 & var15 == 0) | (var16 == 1 & var41 == 1 & var15 == 1) | 0) [L274-L277] CALL assume((var17 == 0 & var40 == 0 & var16 == 1) | (var17 == 0 & var40 == 1 & var16 == 0) | (var17 == 1 & var40 == 0 & var16 == 0) | (var17 == 1 & var40 == 1 & var16 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=76, cond=76] [L274-L277] RET assume((var17 == 0 & var40 == 0 & var16 == 1) | (var17 == 0 & var40 == 1 & var16 == 0) | (var17 == 1 & var40 == 0 & var16 == 0) | (var17 == 1 & var40 == 1 & var16 == 1) | 0) [L278-L281] CALL assume((var18 == 0 & var39 == 0 & var17 == 1) | (var18 == 0 & var39 == 1 & var17 == 0) | (var18 == 1 & var39 == 0 & var17 == 0) | (var18 == 1 & var39 == 1 & var17 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=71, cond=71] [L278-L281] RET assume((var18 == 0 & var39 == 0 & var17 == 1) | (var18 == 0 & var39 == 1 & var17 == 0) | (var18 == 1 & var39 == 0 & var17 == 0) | (var18 == 1 & var39 == 1 & var17 == 1) | 0) [L282-L285] CALL assume((var19 == 0 & var38 == 0 & var18 == 1) | (var19 == 0 & var38 == 1 & var18 == 0) | (var19 == 1 & var38 == 0 & var18 == 0) | (var19 == 1 & var38 == 1 & var18 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=60, cond=60] [L282-L285] RET assume((var19 == 0 & var38 == 0 & var18 == 1) | (var19 == 0 & var38 == 1 & var18 == 0) | (var19 == 1 & var38 == 0 & var18 == 0) | (var19 == 1 & var38 == 1 & var18 == 1) | 0) [L286-L289] CALL assume((var20 == 0 & var37 == 0 & var19 == 1) | (var20 == 0 & var37 == 1 & var19 == 0) | (var20 == 1 & var37 == 0 & var19 == 0) | (var20 == 1 & var37 == 1 & var19 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=56, cond=56] [L286-L289] RET assume((var20 == 0 & var37 == 0 & var19 == 1) | (var20 == 0 & var37 == 1 & var19 == 0) | (var20 == 1 & var37 == 0 & var19 == 0) | (var20 == 1 & var37 == 1 & var19 == 1) | 0) [L290-L293] CALL assume((var21 == 0 & var36 == 0 & var20 == 1) | (var21 == 0 & var36 == 1 & var20 == 0) | (var21 == 1 & var36 == 0 & var20 == 0) | (var21 == 1 & var36 == 1 & var20 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=49, cond=49] [L290-L293] RET assume((var21 == 0 & var36 == 0 & var20 == 1) | (var21 == 0 & var36 == 1 & var20 == 0) | (var21 == 1 & var36 == 0 & var20 == 0) | (var21 == 1 & var36 == 1 & var20 == 1) | 0) [L294-L297] CALL assume((var22 == 0 & var35 == 0 & var21 == 1) | (var22 == 0 & var35 == 1 & var21 == 0) | (var22 == 1 & var35 == 0 & var21 == 0) | (var22 == 1 & var35 == 1 & var21 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=77, cond=77] [L294-L297] RET assume((var22 == 0 & var35 == 0 & var21 == 1) | (var22 == 0 & var35 == 1 & var21 == 0) | (var22 == 1 & var35 == 0 & var21 == 0) | (var22 == 1 & var35 == 1 & var21 == 1) | 0) [L298-L301] CALL assume((var23 == 0 & var34 == 0 & var22 == 1) | (var23 == 0 & var34 == 1 & var22 == 0) | (var23 == 1 & var34 == 0 & var22 == 0) | (var23 == 1 & var34 == 1 & var22 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=64, cond=64] [L298-L301] RET assume((var23 == 0 & var34 == 0 & var22 == 1) | (var23 == 0 & var34 == 1 & var22 == 0) | (var23 == 1 & var34 == 0 & var22 == 0) | (var23 == 1 & var34 == 1 & var22 == 1) | 0) [L302-L305] CALL assume((var24 == 0 & var33 == 0 & var23 == 1) | (var24 == 0 & var33 == 1 & var23 == 0) | (var24 == 1 & var33 == 0 & var23 == 0) | (var24 == 1 & var33 == 1 & var23 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=65, cond=65] [L302-L305] RET assume((var24 == 0 & var33 == 0 & var23 == 1) | (var24 == 0 & var33 == 1 & var23 == 0) | (var24 == 1 & var33 == 0 & var23 == 0) | (var24 == 1 & var33 == 1 & var23 == 1) | 0) [L306-L309] CALL assume((var25 == 0 & var32 == 0 & var24 == 1) | (var25 == 0 & var32 == 1 & var24 == 0) | (var25 == 1 & var32 == 0 & var24 == 0) | (var25 == 1 & var32 == 1 & var24 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=58, cond=58] [L306-L309] RET assume((var25 == 0 & var32 == 0 & var24 == 1) | (var25 == 0 & var32 == 1 & var24 == 0) | (var25 == 1 & var32 == 0 & var24 == 0) | (var25 == 1 & var32 == 1 & var24 == 1) | 0) [L310-L313] CALL assume((var26 == 0 & var31 == 0 & var25 == 1) | (var26 == 0 & var31 == 1 & var25 == 0) | (var26 == 1 & var31 == 0 & var25 == 0) | (var26 == 1 & var31 == 1 & var25 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=72, cond=72] [L310-L313] RET assume((var26 == 0 & var31 == 0 & var25 == 1) | (var26 == 0 & var31 == 1 & var25 == 0) | (var26 == 1 & var31 == 0 & var25 == 0) | (var26 == 1 & var31 == 1 & var25 == 1) | 0) [L314-L317] CALL assume((var27 == 0 & var30 == 0 & var26 == 1) | (var27 == 0 & var30 == 1 & var26 == 0) | (var27 == 1 & var30 == 0 & var26 == 0) | (var27 == 1 & var30 == 1 & var26 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=61, cond=61] [L314-L317] RET assume((var27 == 0 & var30 == 0 & var26 == 1) | (var27 == 0 & var30 == 1 & var26 == 0) | (var27 == 1 & var30 == 0 & var26 == 0) | (var27 == 1 & var30 == 1 & var26 == 1) | 0) [L318-L321] CALL assume((var15 == 0 & var42 == 0 & var14 == 1) | (var15 == 0 & var42 == 1 & var14 == 0) | (var15 == 1 & var42 == 0 & var14 == 0) | (var15 == 1 & var42 == 1 & var14 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=55, cond=55] [L318-L321] RET assume((var15 == 0 & var42 == 0 & var14 == 1) | (var15 == 0 & var42 == 1 & var14 == 0) | (var15 == 1 & var42 == 0 & var14 == 0) | (var15 == 1 & var42 == 1 & var14 == 1) | 0) [L322-L325] CALL assume((var28 == 0 & var29 == 0 & var27 == 0) | (var28 == 0 & var29 == 1 & var27 == 1) | (var28 == 1 & var29 == 0 & var27 == 1) | (var28 == 1 & var29 == 1 & var27 == 0) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=59, cond=59] [L322-L325] RET assume((var28 == 0 & var29 == 0 & var27 == 0) | (var28 == 0 & var29 == 1 & var27 == 1) | (var28 == 1 & var29 == 0 & var27 == 1) | (var28 == 1 & var29 == 1 & var27 == 0) | 0) [L326] reach_error() VAL [dummy=0, myvar0=1, var0=0, var1=1, var10=0, var11=1, var12=0, var13=1, var14=0, var15=1, var16=0, var17=0, var18=1, var19=1, var2=1, var20=1, var21=1, var22=1, var23=1, var24=1, var25=1, var26=1, var27=1, var28=0, var29=0, var3=0, var30=1, var31=0, var32=0, var33=0, var34=1, var35=1, var36=1, var37=1, var38=0, var39=0, var4=1, var40=1, var41=1, var42=0, var43=1, var44=0, var5=1, var6=0, var7=0, var8=0, var9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 247 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 243 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-11-22 16:21:11,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-015.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0 --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 32bit --witnessprinter.graph.data.programhash eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:21:13,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:21:13,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:21:13,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:21:13,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:21:13,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:21:13,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:21:13,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:21:13,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:21:13,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:21:13,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:21:13,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:21:13,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:21:13,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:21:13,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:21:13,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:21:13,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:21:13,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:21:13,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:21:13,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:21:13,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:21:13,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:21:13,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:21:13,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:21:13,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:21:13,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:21:13,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:21:13,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:21:13,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:21:13,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:21:13,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:21:13,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:21:13,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:21:13,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:21:13,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:21:13,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:21:13,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:21:13,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:21:13,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:21:13,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:21:13,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:21:13,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 16:21:13,668 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:21:13,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:21:13,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:21:13,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:21:13,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:21:13,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:21:13,670 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:21:13,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:21:13,671 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:21:13,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:21:13,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:21:13,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:21:13,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:21:13,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:21:13,672 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:21:13,672 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 16:21:13,672 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 16:21:13,673 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:21:13,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:21:13,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:21:13,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:21:13,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:21:13,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:21:13,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:21:13,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:21:13,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:21:13,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:21:13,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:21:13,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:21:13,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 16:21:13,676 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_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 [2021-11-22 16:21:14,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:21:14,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:21:14,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:21:14,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:21:14,136 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:21:14,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/xcsp/Dubois-015.c [2021-11-22 16:21:14,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/aa44ec6ce/4558656476044e2b9917ca82d3a5cb69/FLAGcaca7c496 [2021-11-22 16:21:14,751 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:21:14,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c [2021-11-22 16:21:14,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/aa44ec6ce/4558656476044e2b9917ca82d3a5cb69/FLAGcaca7c496 [2021-11-22 16:21:15,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/data/aa44ec6ce/4558656476044e2b9917ca82d3a5cb69 [2021-11-22 16:21:15,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:21:15,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:21:15,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:21:15,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:21:15,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:21:15,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b2e1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15, skipping insertion in model container [2021-11-22 16:21:15,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:21:15,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:21:15,439 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_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c[10980,10993] [2021-11-22 16:21:15,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:21:15,483 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:21:15,615 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_6a971061-5051-4ded-8442-21c3119d2bb0/sv-benchmarks/c/xcsp/Dubois-015.c[10980,10993] [2021-11-22 16:21:15,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:21:15,653 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:21:15,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15 WrapperNode [2021-11-22 16:21:15,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:21:15,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:21:15,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:21:15,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:21:15,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,776 INFO L137 Inliner]: procedures = 13, calls = 127, calls flagged for inlining = 122, calls inlined = 122, statements flattened = 632 [2021-11-22 16:21:15,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:21:15,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:21:15,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:21:15,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:21:15,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:21:15,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:21:15,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:21:15,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:21:15,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (1/1) ... [2021-11-22 16:21:15,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:21:15,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:21:15,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:21:15,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:21:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:21:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:21:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:21:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 16:21:16,133 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:21:16,134 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:21:16,836 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:21:16,847 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:21:16,848 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 16:21:16,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:21:16 BoogieIcfgContainer [2021-11-22 16:21:16,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:21:16,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:21:16,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:21:16,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:21:16,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:21:15" (1/3) ... [2021-11-22 16:21:16,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42031894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:21:16, skipping insertion in model container [2021-11-22 16:21:16,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:21:15" (2/3) ... [2021-11-22 16:21:16,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42031894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:21:16, skipping insertion in model container [2021-11-22 16:21:16,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:21:16" (3/3) ... [2021-11-22 16:21:16,858 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-015.c [2021-11-22 16:21:16,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:21:16,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:21:16,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:21:16,929 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:21:16,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:21:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 245 states have (on average 1.493877551020408) internal successors, (366), 246 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 16:21:16,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:16,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:16,970 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:16,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1353766438, now seen corresponding path program 1 times [2021-11-22 16:21:16,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:21:16,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497487870] [2021-11-22 16:21:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:16,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:21:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:21:16,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:21:17,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 16:21:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:17,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 16:21:17,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:21:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:17,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:21:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:18,387 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:21:18,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497487870] [2021-11-22 16:21:18,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497487870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:21:18,388 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:21:18,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:21:18,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314194834] [2021-11-22 16:21:18,391 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:21:18,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:21:18,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:21:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:21:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:21:18,447 INFO L87 Difference]: Start difference. First operand has 247 states, 245 states have (on average 1.493877551020408) internal successors, (366), 246 states have internal predecessors, (366), 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 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:21:18,510 INFO L93 Difference]: Finished difference Result 488 states and 726 transitions. [2021-11-22 16:21:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:21:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 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 243 [2021-11-22 16:21:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:21:18,531 INFO L225 Difference]: With dead ends: 488 [2021-11-22 16:21:18,532 INFO L226 Difference]: Without dead ends: 244 [2021-11-22 16:21:18,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:21:18,543 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:21:18,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:21:18,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-22 16:21:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-22 16:21:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.0) internal successors, (243), 243 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:18,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 243 transitions. [2021-11-22 16:21:18,595 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 243 transitions. Word has length 243 [2021-11-22 16:21:18,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:21:18,595 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 243 transitions. [2021-11-22 16:21:18,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:21:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 243 transitions. [2021-11-22 16:21:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 16:21:18,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:21:18,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:21:18,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:21:18,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:21:18,813 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:21:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:21:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1028669560, now seen corresponding path program 1 times [2021-11-22 16:21:18,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:21:18,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219061463] [2021-11-22 16:21:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:21:18,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:21:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:21:18,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:21:18,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a971061-5051-4ded-8442-21c3119d2bb0/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 16:21:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:21:29,289 WARN L261 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 234 conjunts are in the unsatisfiable core [2021-11-22 16:21:29,318 INFO L286 TraceCheckSpWp]: Computing forward predicates...