./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y --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 b6203532a9ef5ba90e15dbd2d5728025b7640a6606e85e563b08b8dcbd8cbea0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:41:10,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:41:10,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:41:10,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:41:10,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:41:10,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:41:10,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:41:10,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:41:11,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:41:11,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:41:11,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:41:11,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:41:11,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:41:11,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:41:11,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:41:11,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:41:11,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:41:11,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:41:11,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:41:11,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:41:11,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:41:11,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:41:11,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:41:11,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:41:11,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:41:11,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:41:11,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:41:11,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:41:11,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:41:11,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:41:11,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:41:11,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:41:11,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:41:11,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:41:11,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:41:11,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:41:11,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:41:11,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:41:11,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:41:11,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:41:11,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:41:11,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:41:11,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:41:11,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:41:11,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:41:11,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:41:11,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:41:11,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:41:11,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:41:11,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:41:11,120 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:41:11,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:41:11,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:41:11,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:41:11,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:41:11,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:41:11,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:41:11,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:41:11,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:41:11,123 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:41:11,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:41:11,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:41:11,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:41:11,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:41:11,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:41:11,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:41:11,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:41:11,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:41:11,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:41:11,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:41:11,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:41:11,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:41:11,128 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:41:11,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:41:11,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:41:11,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:41:11,129 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_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6203532a9ef5ba90e15dbd2d5728025b7640a6606e85e563b08b8dcbd8cbea0 [2021-11-13 18:41:11,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:41:11,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:41:11,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:41:11,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:41:11,454 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:41:11,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/eca-rers2012/Problem02_label22.c [2021-11-13 18:41:11,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/data/aece8346a/b59e6559274c4ce6b52f38549612e255/FLAG843a29e13 [2021-11-13 18:41:12,239 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:41:12,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/sv-benchmarks/c/eca-rers2012/Problem02_label22.c [2021-11-13 18:41:12,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/data/aece8346a/b59e6559274c4ce6b52f38549612e255/FLAG843a29e13 [2021-11-13 18:41:12,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/data/aece8346a/b59e6559274c4ce6b52f38549612e255 [2021-11-13 18:41:12,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:41:12,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:41:12,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:41:12,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:41:12,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:41:12,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:41:12" (1/1) ... [2021-11-13 18:41:12,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29291c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:12, skipping insertion in model container [2021-11-13 18:41:12,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:41:12" (1/1) ... [2021-11-13 18:41:12,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:41:12,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:41:12,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/sv-benchmarks/c/eca-rers2012/Problem02_label22.c[16445,16458] [2021-11-13 18:41:12,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:41:12,941 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:41:13,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/sv-benchmarks/c/eca-rers2012/Problem02_label22.c[16445,16458] [2021-11-13 18:41:13,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:41:13,061 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:41:13,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13 WrapperNode [2021-11-13 18:41:13,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:41:13,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:41:13,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:41:13,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:41:13,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:41:13,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:41:13,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:41:13,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:41:13,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:41:13,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:41:13,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:41:13,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:41:13,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (1/1) ... [2021-11-13 18:41:13,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:41:13,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:41:13,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:41:13,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:41:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:41:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:41:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:41:13,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:41:14,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:41:14,591 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:41:14,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:41:14 BoogieIcfgContainer [2021-11-13 18:41:14,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:41:14,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:41:14,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:41:14,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:41:14,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:41:12" (1/3) ... [2021-11-13 18:41:14,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7d857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:41:14, skipping insertion in model container [2021-11-13 18:41:14,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:41:13" (2/3) ... [2021-11-13 18:41:14,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e7d857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:41:14, skipping insertion in model container [2021-11-13 18:41:14,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:41:14" (3/3) ... [2021-11-13 18:41:14,605 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label22.c [2021-11-13 18:41:14,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:41:14,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:41:14,662 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:41:14,669 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 [2021-11-13 18:41:14,669 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:41:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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) [2021-11-13 18:41:14,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-13 18:41:14,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:14,703 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] [2021-11-13 18:41:14,703 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:14,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1473688725, now seen corresponding path program 1 times [2021-11-13 18:41:14,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:14,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827863328] [2021-11-13 18:41:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:14,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:15,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:15,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827863328] [2021-11-13 18:41:15,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827863328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:15,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:15,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:41:15,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532273548] [2021-11-13 18:41:15,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:15,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:15,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:15,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:15,291 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2021-11-13 18:41:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:16,093 INFO L93 Difference]: Finished difference Result 600 states and 1037 transitions. [2021-11-13 18:41:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:16,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 97 [2021-11-13 18:41:16,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:16,118 INFO L225 Difference]: With dead ends: 600 [2021-11-13 18:41:16,118 INFO L226 Difference]: Without dead ends: 309 [2021-11-13 18:41:16,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:16,132 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 69 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 556.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.74ms SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 716.62ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:16,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 171 Invalid, 564 Unknown, 0 Unchecked, 10.74ms Time], IncrementalHoareTripleChecker [142 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 716.62ms Time] [2021-11-13 18:41:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-13 18:41:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2021-11-13 18:41:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.3300653594771241) internal successors, (407), 306 states have internal predecessors, (407), 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) [2021-11-13 18:41:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 407 transitions. [2021-11-13 18:41:16,190 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 407 transitions. Word has length 97 [2021-11-13 18:41:16,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:16,191 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 407 transitions. [2021-11-13 18:41:16,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2021-11-13 18:41:16,191 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 407 transitions. [2021-11-13 18:41:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-13 18:41:16,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:16,197 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:16,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:41:16,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:16,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2108530240, now seen corresponding path program 1 times [2021-11-13 18:41:16,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:16,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993999492] [2021-11-13 18:41:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:16,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:16,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:16,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993999492] [2021-11-13 18:41:16,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993999492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:16,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:16,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:16,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719275963] [2021-11-13 18:41:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:16,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:16,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:16,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:16,329 INFO L87 Difference]: Start difference. First operand 307 states and 407 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-13 18:41:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:16,917 INFO L93 Difference]: Finished difference Result 758 states and 1034 transitions. [2021-11-13 18:41:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:16,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2021-11-13 18:41:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:16,921 INFO L225 Difference]: With dead ends: 758 [2021-11-13 18:41:16,921 INFO L226 Difference]: Without dead ends: 453 [2021-11-13 18:41:16,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:16,924 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 67 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 437.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.04ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 552.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:16,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 248 Invalid, 445 Unknown, 0 Unchecked, 8.04ms Time], IncrementalHoareTripleChecker [91 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 552.47ms Time] [2021-11-13 18:41:16,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-13 18:41:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2021-11-13 18:41:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.2787610619469028) internal successors, (578), 452 states have internal predecessors, (578), 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) [2021-11-13 18:41:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 578 transitions. [2021-11-13 18:41:16,966 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 578 transitions. Word has length 102 [2021-11-13 18:41:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:16,967 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 578 transitions. [2021-11-13 18:41:16,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-13 18:41:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 578 transitions. [2021-11-13 18:41:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 18:41:16,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:16,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:16,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:41:16,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1211879525, now seen corresponding path program 1 times [2021-11-13 18:41:16,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:16,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702436850] [2021-11-13 18:41:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:16,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:17,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:17,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702436850] [2021-11-13 18:41:17,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702436850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:17,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:17,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:41:17,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867190362] [2021-11-13 18:41:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:17,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:17,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:17,102 INFO L87 Difference]: Start difference. First operand 453 states and 578 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2021-11-13 18:41:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:17,541 INFO L93 Difference]: Finished difference Result 1325 states and 1691 transitions. [2021-11-13 18:41:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 114 [2021-11-13 18:41:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:17,548 INFO L225 Difference]: With dead ends: 1325 [2021-11-13 18:41:17,548 INFO L226 Difference]: Without dead ends: 874 [2021-11-13 18:41:17,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:17,559 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 185 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 323.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:17,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 79 Invalid, 434 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 408.06ms Time] [2021-11-13 18:41:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-11-13 18:41:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2021-11-13 18:41:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 1.2302405498281788) internal successors, (1074), 873 states have internal predecessors, (1074), 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) [2021-11-13 18:41:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1074 transitions. [2021-11-13 18:41:17,641 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1074 transitions. Word has length 114 [2021-11-13 18:41:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:17,641 INFO L470 AbstractCegarLoop]: Abstraction has 874 states and 1074 transitions. [2021-11-13 18:41:17,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2021-11-13 18:41:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1074 transitions. [2021-11-13 18:41:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-13 18:41:17,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:17,659 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:17,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:41:17,659 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash 92854696, now seen corresponding path program 1 times [2021-11-13 18:41:17,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:17,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058370958] [2021-11-13 18:41:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:17,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:17,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:17,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058370958] [2021-11-13 18:41:17,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058370958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:17,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:17,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:17,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498354353] [2021-11-13 18:41:17,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:17,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:17,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:17,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:17,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:17,804 INFO L87 Difference]: Start difference. First operand 874 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-13 18:41:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:18,322 INFO L93 Difference]: Finished difference Result 2027 states and 2555 transitions. [2021-11-13 18:41:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2021-11-13 18:41:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:18,330 INFO L225 Difference]: With dead ends: 2027 [2021-11-13 18:41:18,330 INFO L226 Difference]: Without dead ends: 1155 [2021-11-13 18:41:18,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:18,333 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 77 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 355.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.47ms SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 476.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:18,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 226 Invalid, 456 Unknown, 0 Unchecked, 4.47ms Time], IncrementalHoareTripleChecker [93 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 476.38ms Time] [2021-11-13 18:41:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-11-13 18:41:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1154. [2021-11-13 18:41:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.2437120555073722) internal successors, (1434), 1153 states have internal predecessors, (1434), 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) [2021-11-13 18:41:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1434 transitions. [2021-11-13 18:41:18,368 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1434 transitions. Word has length 127 [2021-11-13 18:41:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:18,369 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 1434 transitions. [2021-11-13 18:41:18,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-13 18:41:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1434 transitions. [2021-11-13 18:41:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-13 18:41:18,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:18,373 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:18,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:41:18,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:18,374 INFO L85 PathProgramCache]: Analyzing trace with hash 952160173, now seen corresponding path program 1 times [2021-11-13 18:41:18,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:18,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365007414] [2021-11-13 18:41:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:18,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:41:18,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:18,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365007414] [2021-11-13 18:41:18,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365007414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:18,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:18,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:41:18,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362176534] [2021-11-13 18:41:18,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:18,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:18,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:18,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:18,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:18,466 INFO L87 Difference]: Start difference. First operand 1154 states and 1434 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:18,772 INFO L93 Difference]: Finished difference Result 2295 states and 2852 transitions. [2021-11-13 18:41:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-13 18:41:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:18,781 INFO L225 Difference]: With dead ends: 2295 [2021-11-13 18:41:18,781 INFO L226 Difference]: Without dead ends: 1143 [2021-11-13 18:41:18,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:18,789 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 208.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.78ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 270.86ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:18,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 23 Invalid, 221 Unknown, 0 Unchecked, 2.78ms Time], IncrementalHoareTripleChecker [22 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 270.86ms Time] [2021-11-13 18:41:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2021-11-13 18:41:18,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1143. [2021-11-13 18:41:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1142 states have (on average 1.1996497373029773) internal successors, (1370), 1142 states have internal predecessors, (1370), 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) [2021-11-13 18:41:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1370 transitions. [2021-11-13 18:41:18,839 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1370 transitions. Word has length 130 [2021-11-13 18:41:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:18,839 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 1370 transitions. [2021-11-13 18:41:18,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1370 transitions. [2021-11-13 18:41:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-13 18:41:18,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:18,846 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:18,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:41:18,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -60341521, now seen corresponding path program 1 times [2021-11-13 18:41:18,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:18,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359520912] [2021-11-13 18:41:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:18,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 18:41:18,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:18,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359520912] [2021-11-13 18:41:18,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359520912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:18,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:18,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:18,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161896877] [2021-11-13 18:41:18,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:18,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:18,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:18,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:18,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:18,976 INFO L87 Difference]: Start difference. First operand 1143 states and 1370 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-13 18:41:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:19,499 INFO L93 Difference]: Finished difference Result 3128 states and 3710 transitions. [2021-11-13 18:41:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 136 [2021-11-13 18:41:19,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:19,514 INFO L225 Difference]: With dead ends: 3128 [2021-11-13 18:41:19,515 INFO L226 Difference]: Without dead ends: 1987 [2021-11-13 18:41:19,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:19,520 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 142 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 370.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.42ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 462.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:19,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 86 Invalid, 391 Unknown, 0 Unchecked, 4.42ms Time], IncrementalHoareTripleChecker [55 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 462.19ms Time] [2021-11-13 18:41:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-11-13 18:41:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1704. [2021-11-13 18:41:19,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1703 states have (on average 1.1720493247210804) internal successors, (1996), 1703 states have internal predecessors, (1996), 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) [2021-11-13 18:41:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1996 transitions. [2021-11-13 18:41:19,605 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1996 transitions. Word has length 136 [2021-11-13 18:41:19,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:19,607 INFO L470 AbstractCegarLoop]: Abstraction has 1704 states and 1996 transitions. [2021-11-13 18:41:19,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-13 18:41:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1996 transitions. [2021-11-13 18:41:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-13 18:41:19,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:19,612 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:19,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:41:19,612 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1997465720, now seen corresponding path program 1 times [2021-11-13 18:41:19,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:19,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797787070] [2021-11-13 18:41:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:19,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:41:19,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:19,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797787070] [2021-11-13 18:41:19,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797787070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:19,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:19,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:19,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524267261] [2021-11-13 18:41:19,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:19,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:19,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:19,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:19,744 INFO L87 Difference]: Start difference. First operand 1704 states and 1996 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-11-13 18:41:20,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:20,253 INFO L93 Difference]: Finished difference Result 3686 states and 4295 transitions. [2021-11-13 18:41:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 143 [2021-11-13 18:41:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:20,264 INFO L225 Difference]: With dead ends: 3686 [2021-11-13 18:41:20,264 INFO L226 Difference]: Without dead ends: 1702 [2021-11-13 18:41:20,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:20,271 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 149 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 376.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.86ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 469.44ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:20,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 40 Invalid, 387 Unknown, 0 Unchecked, 3.86ms Time], IncrementalHoareTripleChecker [56 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 469.44ms Time] [2021-11-13 18:41:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2021-11-13 18:41:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1562. [2021-11-13 18:41:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 1.0890454836643177) internal successors, (1700), 1561 states have internal predecessors, (1700), 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) [2021-11-13 18:41:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1700 transitions. [2021-11-13 18:41:20,320 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1700 transitions. Word has length 143 [2021-11-13 18:41:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:20,320 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 1700 transitions. [2021-11-13 18:41:20,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-11-13 18:41:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1700 transitions. [2021-11-13 18:41:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 18:41:20,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:20,325 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:20,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:41:20,326 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:20,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:20,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1562737042, now seen corresponding path program 1 times [2021-11-13 18:41:20,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:20,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076299527] [2021-11-13 18:41:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:20,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:41:20,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:20,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076299527] [2021-11-13 18:41:20,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076299527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:20,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:20,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:41:20,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563205852] [2021-11-13 18:41:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:20,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:41:20,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:41:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:20,462 INFO L87 Difference]: Start difference. First operand 1562 states and 1700 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2021-11-13 18:41:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:21,303 INFO L93 Difference]: Finished difference Result 3292 states and 3584 transitions. [2021-11-13 18:41:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:41:21,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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 147 [2021-11-13 18:41:21,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:21,314 INFO L225 Difference]: With dead ends: 3292 [2021-11-13 18:41:21,315 INFO L226 Difference]: Without dead ends: 1732 [2021-11-13 18:41:21,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:41:21,318 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 405 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 626.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.96ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 765.20ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:21,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 94 Invalid, 860 Unknown, 0 Unchecked, 7.96ms Time], IncrementalHoareTripleChecker [68 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 765.20ms Time] [2021-11-13 18:41:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2021-11-13 18:41:21,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1559. [2021-11-13 18:41:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 1.0937098844672657) internal successors, (1704), 1558 states have internal predecessors, (1704), 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) [2021-11-13 18:41:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1704 transitions. [2021-11-13 18:41:21,365 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1704 transitions. Word has length 147 [2021-11-13 18:41:21,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:21,367 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 1704 transitions. [2021-11-13 18:41:21,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2021-11-13 18:41:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1704 transitions. [2021-11-13 18:41:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-13 18:41:21,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:21,378 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:21,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:41:21,378 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1048369386, now seen corresponding path program 1 times [2021-11-13 18:41:21,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:21,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546495239] [2021-11-13 18:41:21,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:21,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-13 18:41:21,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:21,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546495239] [2021-11-13 18:41:21,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546495239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:21,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:21,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:21,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476900280] [2021-11-13 18:41:21,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:21,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:21,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:21,495 INFO L87 Difference]: Start difference. First operand 1559 states and 1704 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-13 18:41:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:21,947 INFO L93 Difference]: Finished difference Result 3676 states and 4006 transitions. [2021-11-13 18:41:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 191 [2021-11-13 18:41:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:21,956 INFO L225 Difference]: With dead ends: 3676 [2021-11-13 18:41:21,956 INFO L226 Difference]: Without dead ends: 1137 [2021-11-13 18:41:21,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:21,960 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 95 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 335.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.10ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 415.77ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:21,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 216 Invalid, 346 Unknown, 0 Unchecked, 4.10ms Time], IncrementalHoareTripleChecker [43 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 415.77ms Time] [2021-11-13 18:41:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-11-13 18:41:21,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1136. [2021-11-13 18:41:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 1.0669603524229074) internal successors, (1211), 1135 states have internal predecessors, (1211), 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) [2021-11-13 18:41:21,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1211 transitions. [2021-11-13 18:41:21,996 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1211 transitions. Word has length 191 [2021-11-13 18:41:21,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:21,996 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 1211 transitions. [2021-11-13 18:41:21,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-13 18:41:21,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1211 transitions. [2021-11-13 18:41:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-13 18:41:22,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:22,002 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:22,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:41:22,002 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash -64714671, now seen corresponding path program 1 times [2021-11-13 18:41:22,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:22,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275064872] [2021-11-13 18:41:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:22,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:22,157 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-13 18:41:22,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:22,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275064872] [2021-11-13 18:41:22,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275064872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:22,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:22,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:41:22,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786979410] [2021-11-13 18:41:22,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:22,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:22,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:22,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:22,161 INFO L87 Difference]: Start difference. First operand 1136 states and 1211 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:22,528 INFO L93 Difference]: Finished difference Result 2694 states and 2858 transitions. [2021-11-13 18:41:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2021-11-13 18:41:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:22,536 INFO L225 Difference]: With dead ends: 2694 [2021-11-13 18:41:22,536 INFO L226 Difference]: Without dead ends: 1276 [2021-11-13 18:41:22,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:41:22,539 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 57 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 272.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.94ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 339.30ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:22,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 201 Invalid, 298 Unknown, 0 Unchecked, 3.94ms Time], IncrementalHoareTripleChecker [16 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 339.30ms Time] [2021-11-13 18:41:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-11-13 18:41:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1134. [2021-11-13 18:41:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1133 states have (on average 1.0388349514563107) internal successors, (1177), 1133 states have internal predecessors, (1177), 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) [2021-11-13 18:41:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1177 transitions. [2021-11-13 18:41:22,572 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1177 transitions. Word has length 198 [2021-11-13 18:41:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:22,573 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1177 transitions. [2021-11-13 18:41:22,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:22,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1177 transitions. [2021-11-13 18:41:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-13 18:41:22,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:22,579 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:22,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:41:22,579 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:22,580 INFO L85 PathProgramCache]: Analyzing trace with hash -318196994, now seen corresponding path program 1 times [2021-11-13 18:41:22,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:22,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876324364] [2021-11-13 18:41:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:22,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 88 proven. 106 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 18:41:22,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:22,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876324364] [2021-11-13 18:41:22,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876324364] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:41:22,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131777974] [2021-11-13 18:41:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:22,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:41:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:41:22,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:41:22,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:41:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:22,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:41:22,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:41:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-11-13 18:41:23,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:41:23,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131777974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:23,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:41:23,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-13 18:41:23,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230142836] [2021-11-13 18:41:23,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:23,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:23,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:23,680 INFO L87 Difference]: Start difference. First operand 1134 states and 1177 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:23,884 INFO L93 Difference]: Finished difference Result 2123 states and 2208 transitions. [2021-11-13 18:41:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:23,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-11-13 18:41:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:23,886 INFO L225 Difference]: With dead ends: 2123 [2021-11-13 18:41:23,886 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:41:23,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:23,889 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:23,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 13 Invalid, 156 Unknown, 0 Unchecked, 1.66ms Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 188.22ms Time] [2021-11-13 18:41:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:41:23,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:41:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:41:23,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2021-11-13 18:41:23,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:23,892 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:41:23,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:41:23,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:41:23,895 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:41:23,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:41:24,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:41:24,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:41:24,985 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,985 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-11-13 18:41:24,986 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,987 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,988 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,989 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-11-13 18:41:24,990 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-11-13 18:41:24,991 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-11-13 18:41:24,992 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-11-13 18:41:24,993 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-11-13 18:41:24,993 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,993 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-11-13 18:41:24,995 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,996 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-11-13 18:41:24,997 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 473) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-11-13 18:41:24,998 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-11-13 18:41:24,999 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-11-13 18:41:25,000 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-11-13 18:41:25,001 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-11-13 18:41:25,002 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-11-13 18:41:25,003 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-11-13 18:41:25,004 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-11-13 18:41:25,005 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (<= 10 ~a28~0)) (.cse5 (= ~a19~0 1)) (.cse0 (<= 8 ~a17~0)) (.cse4 (<= ~a28~0 10)) (.cse6 (= ~a25~0 1)) (.cse7 (= ~a11~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse4) (and .cse3 .cse1 .cse4 .cse5) (and (= ~a17~0 8) .cse6 (= ~a28~0 11) (= ~a21~0 1) .cse5 (not .cse7)) (and .cse6 .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse4 .cse5) (and (<= 9 ~a28~0) .cse7 .cse1 .cse4) (and .cse0 .cse1 .cse4 (not .cse6)) (and .cse7 .cse1 .cse2))) [2021-11-13 18:41:25,005 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,005 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,005 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-11-13 18:41:25,005 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-11-13 18:41:25,006 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-11-13 18:41:25,006 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-11-13 18:41:25,006 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-11-13 18:41:25,006 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-11-13 18:41:25,006 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-11-13 18:41:25,006 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-11-13 18:41:25,007 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-11-13 18:41:25,008 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-11-13 18:41:25,009 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (<= 10 ~a28~0)) (.cse5 (= ~a19~0 1)) (.cse0 (<= 8 ~a17~0)) (.cse4 (<= ~a28~0 10)) (.cse6 (= ~a25~0 1)) (.cse7 (= ~a11~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse4) (and .cse3 .cse1 .cse4 .cse5) (and (= ~a17~0 8) .cse6 (= ~a28~0 11) (= ~a21~0 1) .cse5 (not .cse7)) (and .cse6 .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse4 .cse5) (and (<= 9 ~a28~0) .cse7 .cse1 .cse4) (and .cse0 .cse1 .cse4 (not .cse6)) (and .cse7 .cse1 .cse2))) [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-11-13 18:41:25,010 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-11-13 18:41:25,011 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,012 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-11-13 18:41:25,013 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,014 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,015 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-11-13 18:41:25,016 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-11-13 18:41:25,020 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:25,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:41:25,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:41:25 BoogieIcfgContainer [2021-11-13 18:41:25,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:41:25,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:41:25,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:41:25,044 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:41:25,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:41:14" (3/4) ... [2021-11-13 18:41:25,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:41:25,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 18:41:25,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:41:25,073 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:41:25,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:41:25,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:41:25,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:41:25,197 INFO L158 Benchmark]: Toolchain (without parser) took 12739.17ms. Allocated memory was 102.8MB in the beginning and 207.6MB in the end (delta: 104.9MB). Free memory was 63.8MB in the beginning and 127.5MB in the end (delta: -63.7MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,197 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 67.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:41:25,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.26ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 62.8MB in the end (delta: 850.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.92ms. Allocated memory is still 102.8MB. Free memory was 62.8MB in the beginning and 57.2MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,198 INFO L158 Benchmark]: Boogie Preprocessor took 125.19ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 53.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,199 INFO L158 Benchmark]: RCFGBuilder took 1305.60ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 52.7MB in the beginning and 77.7MB in the end (delta: -24.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,199 INFO L158 Benchmark]: TraceAbstraction took 10445.91ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 76.5MB in the beginning and 142.2MB in the end (delta: -65.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,200 INFO L158 Benchmark]: Witness Printer took 152.77ms. Allocated memory is still 207.6MB. Free memory was 142.2MB in the beginning and 127.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 18:41:25,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 67.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.26ms. Allocated memory is still 102.8MB. Free memory was 63.6MB in the beginning and 62.8MB in the end (delta: 850.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.92ms. Allocated memory is still 102.8MB. Free memory was 62.8MB in the beginning and 57.2MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.19ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 53.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1305.60ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 52.7MB in the beginning and 77.7MB in the end (delta: -24.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10445.91ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 76.5MB in the beginning and 142.2MB in the end (delta: -65.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * Witness Printer took 152.77ms. Allocated memory is still 207.6MB. Free memory was 142.2MB in the beginning and 127.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 473]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1494 SdHoareTripleChecker+Valid, 5064.52ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1494 mSDsluCounter, 1397 SdHoareTripleChecker+Invalid, 4015.17ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 673 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3885 IncrementalHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 673 mSolverCounterUnsat, 1225 mSDtfsCounter, 3885 mSolverCounterSat, 56.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1704occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 742 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 241 HoareAnnotationTreeSize, 3 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2178 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1853 NumberOfCodeBlocks, 1853 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1841 ConstructedInterpolants, 0 QuantifiedInterpolants, 4326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 390 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 910/1016 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((8 <= a17 && a17 <= 8) && a28 <= 7) || (((10 <= a28 && 8 <= a17) && a17 <= 8) && a28 <= 10)) || (((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && a25 == 1) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((8 <= a17 && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((8 <= a17 && a17 <= 8) && a28 <= 10) && !(a25 == 1))) || ((a11 == 1 && a17 <= 8) && a28 <= 7) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((8 <= a17 && a17 <= 8) && a28 <= 7) || (((10 <= a28 && 8 <= a17) && a17 <= 8) && a28 <= 10)) || (((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && a25 == 1) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((8 <= a17 && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((8 <= a17 && a17 <= 8) && a28 <= 10) && !(a25 == 1))) || ((a11 == 1 && a17 <= 8) && a28 <= 7) RESULT: Ultimate proved your program to be correct! [2021-11-13 18:41:25,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32de2128-2a11-4dcc-bd50-22ae1ce21c9f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE