./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test24-2.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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/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 ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:25:11,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:25:11,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:25:11,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:25:11,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:25:11,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:25:11,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:25:11,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:25:11,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:25:11,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:25:11,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:25:11,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:25:11,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:25:11,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:25:11,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:25:11,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:25:11,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:25:11,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:25:11,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:25:11,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:25:11,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:25:11,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:25:11,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:25:11,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:25:11,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:25:11,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:25:11,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:25:11,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:25:11,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:25:11,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:25:11,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:25:11,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:25:11,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:25:11,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:25:11,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:25:11,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:25:11,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:25:11,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:25:11,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:25:11,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:25:11,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:25:11,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:25:11,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:25:11,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:25:11,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:25:11,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:25:11,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:25:11,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:25:11,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:25:11,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:25:11,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:25:11,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:25:11,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:25:11,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:25:11,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:25:11,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:25:11,651 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:25:11,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:25:11,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:25:11,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:25:11,652 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:25:11,652 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:25:11,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:25:11,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:25:11,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:25:11,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:25:11,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:25:11,654 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:25:11,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:25:11,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:25:11,654 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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 [2021-11-22 23:25:11,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:25:11,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:25:11,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:25:11,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:25:11,984 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:25:11,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-regression/test24-2.c [2021-11-22 23:25:12,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/data/bedb57ef8/923949ce8919467f8f0c45005148dfc5/FLAGf24414818 [2021-11-22 23:25:12,618 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:25:12,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/sv-benchmarks/c/ldv-regression/test24-2.c [2021-11-22 23:25:12,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/data/bedb57ef8/923949ce8919467f8f0c45005148dfc5/FLAGf24414818 [2021-11-22 23:25:12,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/data/bedb57ef8/923949ce8919467f8f0c45005148dfc5 [2021-11-22 23:25:12,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:25:12,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:25:12,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:25:12,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:25:12,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:25:12,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:25:12" (1/1) ... [2021-11-22 23:25:12,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12785c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:12, skipping insertion in model container [2021-11-22 23:25:12,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:25:12" (1/1) ... [2021-11-22 23:25:13,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:25:13,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:25:13,228 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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2021-11-22 23:25:13,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:25:13,241 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:25:13,269 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_c49a21fe-0f06-40d2-a730-da8eff40bd7e/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2021-11-22 23:25:13,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:25:13,296 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:25:13,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13 WrapperNode [2021-11-22 23:25:13,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:25:13,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:25:13,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:25:13,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:25:13,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,336 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2021-11-22 23:25:13,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:25:13,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:25:13,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:25:13,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:25:13,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:25:13,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:25:13,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:25:13,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:25:13,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:25:13,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:25:13,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:25:13,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:25:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:25:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:25:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:25:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:25:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:25:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:25:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:25:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:25:13,525 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:25:13,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:25:13,638 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:25:13,663 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:25:13,664 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:25:13,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:13 BoogieIcfgContainer [2021-11-22 23:25:13,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:25:13,667 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:25:13,667 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:25:13,676 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:25:13,676 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:25:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-22 23:25:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-22 23:25:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:25:13,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:13,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-22 23:25:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-22 23:25:13,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 23:25:13,956 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:13,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-22 23:25:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-22 23:25:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 23:25:14,053 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-22 23:25:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-22 23:25:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 23:25:14,250 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2021-11-22 23:25:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-22 23:25:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:25:14,438 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-22 23:25:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-22 23:25:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:25:14,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2021-11-22 23:25:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-11-22 23:25:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:25:14,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:14,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2021-11-22 23:25:14,959 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-22 23:25:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:25:14,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2021-11-22 23:25:15,144 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-11-22 23:25:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 23:25:15,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2021-11-22 23:25:15,333 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-22 23:25:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:25:15,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-11-22 23:25:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-22 23:25:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 23:25:15,490 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-11-22 23:25:15,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-22 23:25:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 23:25:15,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:15,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-22 23:25:15,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-22 23:25:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 23:25:15,842 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2021-11-22 23:25:16,018 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-11-22 23:25:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 23:25:16,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,133 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2021-11-22 23:25:16,212 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-11-22 23:25:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:25:16,218 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2021-11-22 23:25:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-22 23:25:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:25:16,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2021-11-22 23:25:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-11-22 23:25:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 23:25:16,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:16,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2021-11-22 23:25:16,812 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-11-22 23:25:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:25:16,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2021-11-22 23:25:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-11-22 23:25:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 23:25:17,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2021-11-22 23:25:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-11-22 23:25:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:25:17,249 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:17,344 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:25:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 32 states and 35 transitions. [2021-11-22 23:25:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-11-22 23:25:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 23:25:17,449 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:17,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:25:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:26,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:25:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:33,385 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2021-11-22 23:25:33,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:25:33 ImpRootNode [2021-11-22 23:25:33,466 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:25:33,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:25:33,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:25:33,467 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:25:33,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:13" (3/4) ... [2021-11-22 23:25:33,469 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:25:33,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:25:33,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:25:33,603 INFO L158 Benchmark]: Toolchain (without parser) took 20621.91ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 60.6MB in the beginning and 61.1MB in the end (delta: -490.0kB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,609 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:25:33,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.64ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 76.3MB in the end (delta: -16.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:25:33,610 INFO L158 Benchmark]: Boogie Preprocessor took 24.65ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,611 INFO L158 Benchmark]: RCFGBuilder took 303.64ms. Allocated memory is still 102.8MB. Free memory was 73.3MB in the beginning and 62.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,611 INFO L158 Benchmark]: CodeCheck took 19799.31ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 64.2MB in the end (delta: -1.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,612 INFO L158 Benchmark]: Witness Printer took 135.81ms. Allocated memory is still 123.7MB. Free memory was 64.2MB in the beginning and 61.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:25:33,614 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 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 21, 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, 435 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 821 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 917 IncrementalHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 821 mSolverCounterUnsat, 160 mSDtfsCounter, 917 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2474 GetRequests, 2225 SyntacticMatches, 171 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2299 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 8.8s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 377 NumberOfCodeBlocks, 377 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1330 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 - CounterExampleResult [Line: 39]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] struct dummy ad1[20], *ad2; [L18] int i, j, *pa; [L19] j=0 VAL [ad1={21384:0}, j=0] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=1] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=2] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=3] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=4] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=5] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=6] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=7] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=8] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=9] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=10] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=11] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=12] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=13] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=14] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=15] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=16] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=17] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=18] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=19] [L19] COND TRUE j<20 [L20] ad1[j].a = __VERIFIER_nondet_int() [L21] ad1[j].b = __VERIFIER_nondet_int() [L19] j++ VAL [ad1={21384:0}, j=20] [L19] COND FALSE !(j<20) [L23] i = __VERIFIER_nondet_int() [L24] COND TRUE i >= 0 && i < 10 [L25] ad2 = ad1 [L26] ad1[i].a = i [L27] pa = &ad1[i].a [L28] EXPR ad2[i].a [L28] i = ad2[i].a + 10 [L29] EXPR \read(*pa) VAL [\read(*pa)=0, ad1={21384:0}, ad2={21384:0}, i=10, j=20, pa={21384:0}] [L29] COND FALSE !(i < *pa) [L32] CALL, EXPR check(ad1, i) [L12] EXPR ad1[b].a [L12] return ad1[b].a == b; [L32] RET, EXPR check(ad1, i) [L32] COND TRUE !check(ad1, i) [L39] reach_error() VAL [ad1={21384:0}, ad2={21384:0}, i=10, j=20, pa={21384:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.64ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 76.3MB in the end (delta: -16.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.65ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.64ms. Allocated memory is still 102.8MB. Free memory was 73.3MB in the beginning and 62.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 19799.31ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 64.2MB in the end (delta: -1.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 135.81ms. Allocated memory is still 123.7MB. Free memory was 64.2MB in the beginning and 61.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:25:33,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c49a21fe-0f06-40d2-a730-da8eff40bd7e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE