./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:54:08,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:54:08,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:54:08,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:54:08,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:54:08,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:54:08,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:54:08,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:54:08,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:54:08,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:54:08,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:54:08,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:54:08,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:54:08,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:54:08,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:54:08,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:54:08,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:54:08,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:54:08,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:54:08,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:54:08,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:54:08,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:54:08,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:54:08,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:54:08,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:54:08,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:54:08,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:54:08,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:54:08,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:54:08,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:54:08,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:54:08,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:54:08,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:54:08,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:54:08,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:54:08,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:54:08,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:54:08,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:54:08,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:54:08,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:54:08,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:54:08,337 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:54:08,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:54:08,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:54:08,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:54:08,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:54:08,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:54:08,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:54:08,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:54:08,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:54:08,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:54:08,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:54:08,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:54:08,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:54:08,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:54:08,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:54:08,390 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:54:08,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:54:08,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:54:08,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:54:08,391 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:54:08,391 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:54:08,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:54:08,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:54:08,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:54:08,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:54:08,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:54:08,393 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:54:08,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:54:08,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:54:08,394 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_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 [2021-11-23 00:54:08,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:54:08,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:54:08,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:54:08,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:54:08,772 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:54:08,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-11-23 00:54:08,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/data/d5a894d5c/5b29741e3b394ca8a8db9c9ab42d21f8/FLAGc80db3def [2021-11-23 00:54:09,373 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:54:09,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-11-23 00:54:09,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/data/d5a894d5c/5b29741e3b394ca8a8db9c9ab42d21f8/FLAGc80db3def [2021-11-23 00:54:09,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/data/d5a894d5c/5b29741e3b394ca8a8db9c9ab42d21f8 [2021-11-23 00:54:09,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:54:09,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:54:09,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:54:09,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:54:09,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:54:09,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:09" (1/1) ... [2021-11-23 00:54:09,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2da7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:09, skipping insertion in model container [2021-11-23 00:54:09,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:54:09" (1/1) ... [2021-11-23 00:54:09,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:54:09,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:54:09,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-11-23 00:54:09,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:54:10,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:54:10,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-11-23 00:54:10,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:54:10,050 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:54:10,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10 WrapperNode [2021-11-23 00:54:10,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:54:10,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:54:10,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:54:10,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:54:10,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,093 INFO L137 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2021-11-23 00:54:10,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:54:10,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:54:10,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:54:10,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:54:10,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:54:10,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:54:10,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:54:10,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:54:10,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:54:10,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:54:10,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:54:10,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:54:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:54:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:54:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:54:10,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:54:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:54:10,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:54:10,301 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:54:10,303 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:54:10,486 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:54:10,517 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:54:10,517 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:54:10,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:10 BoogieIcfgContainer [2021-11-23 00:54:10,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:54:10,536 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:54:10,536 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:54:10,546 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:54:10,546 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:10" (1/1) ... [2021-11-23 00:54:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:54:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2021-11-23 00:54:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2021-11-23 00:54:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:54:10,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:10,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-11-23 00:54:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-23 00:54:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:54:10,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:10,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 51 transitions. [2021-11-23 00:54:11,065 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-11-23 00:54:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 00:54:11,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 32 states and 52 transitions. [2021-11-23 00:54:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2021-11-23 00:54:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 00:54:11,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 33 states and 52 transitions. [2021-11-23 00:54:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-11-23 00:54:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:54:11,192 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 59 transitions. [2021-11-23 00:54:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2021-11-23 00:54:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:54:11,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 60 transitions. [2021-11-23 00:54:11,570 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-11-23 00:54:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:54:11,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 40 states and 62 transitions. [2021-11-23 00:54:11,648 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 62 transitions. [2021-11-23 00:54:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:54:11,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:54:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 46 states and 75 transitions. [2021-11-23 00:54:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2021-11-23 00:54:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:54:11,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:11,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:54:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:12,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 47 states and 76 transitions. [2021-11-23 00:54:12,062 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2021-11-23 00:54:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:54:12,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:12,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:54:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 91 transitions. [2021-11-23 00:54:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 91 transitions. [2021-11-23 00:54:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 00:54:12,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:12,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:12,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 61 states and 107 transitions. [2021-11-23 00:54:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2021-11-23 00:54:12,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:54:12,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:12,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:13,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 62 states and 108 transitions. [2021-11-23 00:54:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 108 transitions. [2021-11-23 00:54:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:54:13,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:13,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:54:13,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 70 states and 132 transitions. [2021-11-23 00:54:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2021-11-23 00:54:13,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 00:54:13,802 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:13,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:54:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 75 states and 144 transitions. [2021-11-23 00:54:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 144 transitions. [2021-11-23 00:54:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:54:14,457 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:14,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:54:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 80 states and 155 transitions. [2021-11-23 00:54:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 155 transitions. [2021-11-23 00:54:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:54:14,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:14,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:54:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 79 states and 150 transitions. [2021-11-23 00:54:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 150 transitions. [2021-11-23 00:54:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:54:15,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:15,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:54:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 86 states and 163 transitions. [2021-11-23 00:54:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2021-11-23 00:54:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 00:54:15,879 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:15,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:54:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 99 states and 191 transitions. [2021-11-23 00:54:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 191 transitions. [2021-11-23 00:54:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 00:54:17,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:17,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-23 00:54:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 107 states and 209 transitions. [2021-11-23 00:54:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 209 transitions. [2021-11-23 00:54:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 00:54:18,085 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:18,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 00:54:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:19,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 115 states and 226 transitions. [2021-11-23 00:54:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 226 transitions. [2021-11-23 00:54:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 00:54:19,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:19,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:54:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 118 states and 235 transitions. [2021-11-23 00:54:19,477 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 235 transitions. [2021-11-23 00:54:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 00:54:19,478 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:19,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 00:54:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 120 states and 245 transitions. [2021-11-23 00:54:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 245 transitions. [2021-11-23 00:54:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:54:19,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:19,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:54:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 131 states and 269 transitions. [2021-11-23 00:54:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 269 transitions. [2021-11-23 00:54:21,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:54:21,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:21,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 00:54:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:21,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 133 states and 274 transitions. [2021-11-23 00:54:21,644 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 274 transitions. [2021-11-23 00:54:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 00:54:21,645 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:21,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 00:54:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 80 states and 139 transitions. [2021-11-23 00:54:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 139 transitions. [2021-11-23 00:54:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:54:22,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:22,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-23 00:54:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 88 states and 156 transitions. [2021-11-23 00:54:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 156 transitions. [2021-11-23 00:54:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 00:54:24,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:24,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-23 00:54:24,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:24,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 90 states and 159 transitions. [2021-11-23 00:54:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 159 transitions. [2021-11-23 00:54:24,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 00:54:24,572 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:24,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-23 00:54:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 93 states and 164 transitions. [2021-11-23 00:54:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 164 transitions. [2021-11-23 00:54:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 00:54:24,868 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:24,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-11-23 00:54:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:26,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 101 states and 182 transitions. [2021-11-23 00:54:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 182 transitions. [2021-11-23 00:54:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 00:54:26,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:26,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 52 proven. 40 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-23 00:54:27,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 105 states and 188 transitions. [2021-11-23 00:54:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 188 transitions. [2021-11-23 00:54:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 00:54:27,348 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:27,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 56 proven. 46 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-23 00:54:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 110 states and 197 transitions. [2021-11-23 00:54:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 197 transitions. [2021-11-23 00:54:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 00:54:28,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:28,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 68 proven. 44 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-23 00:54:29,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 38 states and 60 transitions. [2021-11-23 00:54:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-11-23 00:54:29,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:54:29,319 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 33 iterations. [2021-11-23 00:54:29,330 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:54:29,561 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:54:29,565 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:54:29,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:54:29 ImpRootNode [2021-11-23 00:54:29,565 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:54:29,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:54:29,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:54:29,566 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:54:29,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:10" (3/4) ... [2021-11-23 00:54:29,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:54:29,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 00:54:29,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 00:54:29,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 00:54:29,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:54:29,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:54:29,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:54:29,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:54:29,638 INFO L158 Benchmark]: Toolchain (without parser) took 19924.57ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 53.5MB in the beginning and 88.3MB in the end (delta: -34.8MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,639 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 88.1MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:54:29,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.32ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 63.8MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.32ms. Allocated memory is still 88.1MB. Free memory was 63.8MB in the beginning and 62.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,641 INFO L158 Benchmark]: Boogie Preprocessor took 28.64ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.2MB in the end (delta: 855.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,641 INFO L158 Benchmark]: RCFGBuilder took 411.47ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 51.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,642 INFO L158 Benchmark]: CodeCheck took 19029.51ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 50.7MB in the beginning and 90.4MB in the end (delta: -39.7MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,642 INFO L158 Benchmark]: Witness Printer took 71.84ms. Allocated memory is still 188.7MB. Free memory was 90.4MB in the beginning and 88.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:54:29,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 33, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6901 SdHoareTripleChecker+Valid, 19.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2101 mSDsluCounter, 5290 SdHoareTripleChecker+Invalid, 15.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3402 mSDsCounter, 3740 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12445 IncrementalHoareTripleChecker+Invalid, 16185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3740 mSolverCounterUnsat, 1888 mSDtfsCounter, 12445 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14353 GetRequests, 13732 SyntacticMatches, 305 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54979 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1443 NumberOfCodeBlocks, 1443 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1411 ConstructedInterpolants, 0 QuantifiedInterpolants, 4579 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 15 PerfectInterpolantSequences, 3599/3856 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 88.1MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.32ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 63.8MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.32ms. Allocated memory is still 88.1MB. Free memory was 63.8MB in the beginning and 62.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.64ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.2MB in the end (delta: 855.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.47ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 51.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 19029.51ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 50.7MB in the beginning and 90.4MB in the end (delta: -39.7MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Witness Printer took 71.84ms. Allocated memory is still 188.7MB. Free memory was 90.4MB in the beginning and 88.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:54:29,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5fbb40-afd7-41a2-92e6-944f5fcf3d31/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE