./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/pcompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/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_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/pcompf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/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_961fbfde-09c9-448c-80d3-307d9f08b77a/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 f995d1a14a0e61f10b2f5817b1ff2bf8d1511dbe7297ad48450a11ed6f3a9160 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:46:43,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:46:43,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:46:43,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:46:43,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:46:43,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:46:43,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:46:43,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:46:43,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:46:43,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:46:43,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:46:43,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:46:43,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:46:43,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:46:43,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:46:43,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:46:43,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:46:43,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:46:43,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:46:43,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:46:43,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:46:43,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:46:43,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:46:43,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:46:43,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:46:43,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:46:43,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:46:43,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:46:43,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:46:43,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:46:43,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:46:43,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:46:43,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:46:43,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:46:43,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:46:43,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:46:43,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:46:43,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:46:43,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:46:43,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:46:43,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:46:43,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:46:43,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:46:43,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:46:43,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:46:43,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:46:43,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:46:43,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:46:43,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:46:43,337 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:46:43,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:46:43,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:46:43,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:46:43,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:46:43,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:46:43,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:46:43,339 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:46:43,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:46:43,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:46:43,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:46:43,340 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:46:43,340 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:46:43,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:46:43,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:46:43,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:46:43,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:46:43,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:46:43,341 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:46:43,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:46:43,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:46:43,342 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_961fbfde-09c9-448c-80d3-307d9f08b77a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f995d1a14a0e61f10b2f5817b1ff2bf8d1511dbe7297ad48450a11ed6f3a9160 [2021-11-23 01:46:43,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:46:43,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:46:43,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:46:43,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:46:43,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:46:43,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-fpi/pcompf.c [2021-11-23 01:46:43,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/data/eb6635a96/8765bdfeae3542c4a05fb9b6d445c613/FLAG0b3a7bb26 [2021-11-23 01:46:44,266 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:46:44,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/sv-benchmarks/c/array-fpi/pcompf.c [2021-11-23 01:46:44,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/data/eb6635a96/8765bdfeae3542c4a05fb9b6d445c613/FLAG0b3a7bb26 [2021-11-23 01:46:44,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/data/eb6635a96/8765bdfeae3542c4a05fb9b6d445c613 [2021-11-23 01:46:44,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:46:44,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:46:44,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:46:44,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:46:44,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:46:44,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:44,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9baf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44, skipping insertion in model container [2021-11-23 01:46:44,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:44,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:46:44,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:46:44,874 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_961fbfde-09c9-448c-80d3-307d9f08b77a/sv-benchmarks/c/array-fpi/pcompf.c[589,602] [2021-11-23 01:46:44,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:46:44,914 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:46:44,939 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_961fbfde-09c9-448c-80d3-307d9f08b77a/sv-benchmarks/c/array-fpi/pcompf.c[589,602] [2021-11-23 01:46:44,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:46:44,982 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:46:44,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44 WrapperNode [2021-11-23 01:46:44,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:46:44,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:46:44,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:46:44,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:46:44,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,052 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2021-11-23 01:46:45,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:46:45,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:46:45,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:46:45,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:46:45,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:46:45,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:46:45,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:46:45,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:46:45,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2021-11-23 01:46:45,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:46:45,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:46:45,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:46:45,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_961fbfde-09c9-448c-80d3-307d9f08b77a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:46:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:46:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:46:45,333 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:46:45,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:46:45,581 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:46:45,648 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:46:45,649 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 01:46:45,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:45 BoogieIcfgContainer [2021-11-23 01:46:45,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:46:45,662 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:46:45,662 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:46:45,673 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:46:45,673 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:45" (1/1) ... [2021-11-23 01:46:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:46:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2021-11-23 01:46:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2021-11-23 01:46:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:46:45,737 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:45,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:45,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:46:45,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:46,039 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-23 01:46:46,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-23 01:46:46,271 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 01:46:46,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2021-11-23 01:46:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2021-11-23 01:46:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:46:46,422 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:46,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:46,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:46:46,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 20 states and 46 transitions. [2021-11-23 01:46:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 46 transitions. [2021-11-23 01:46:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:46:46,894 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:46,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:46,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:46:46,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 21 states and 49 transitions. [2021-11-23 01:46:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 49 transitions. [2021-11-23 01:46:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:46:47,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:47,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:47,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:46:47,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 24 states and 62 transitions. [2021-11-23 01:46:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 62 transitions. [2021-11-23 01:46:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:46:47,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:47,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:47,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:46:47,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:46:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 25 states and 65 transitions. [2021-11-23 01:46:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 65 transitions. [2021-11-23 01:46:48,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:46:48,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:48,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:48,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:46:48,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:46:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 27 states and 70 transitions. [2021-11-23 01:46:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 70 transitions. [2021-11-23 01:46:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:46:48,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:48,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:48,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:46:48,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:48,302 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 01:46:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:46:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 78 transitions. [2021-11-23 01:46:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 78 transitions. [2021-11-23 01:46:48,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:46:48,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:46:48,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:48,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 01:46:48,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:46:48,795 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-23 01:46:48,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-23 01:46:48,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-23 01:46:49,050 INFO L354 Elim1Store]: treesize reduction 113, result has 33.5 percent of original size [2021-11-23 01:46:49,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 94 [2021-11-23 01:46:50,088 INFO L354 Elim1Store]: treesize reduction 373, result has 39.4 percent of original size [2021-11-23 01:46:50,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 108 treesize of output 306