./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 06:33:24,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 06:33:24,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 06:33:24,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 06:33:24,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 06:33:24,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 06:33:24,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 06:33:24,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 06:33:24,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 06:33:24,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 06:33:24,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 06:33:24,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 06:33:24,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 06:33:24,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 06:33:24,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 06:33:24,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 06:33:24,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 06:33:24,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 06:33:24,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 06:33:24,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 06:33:24,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 06:33:24,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 06:33:24,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 06:33:24,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 06:33:24,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 06:33:24,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 06:33:24,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 06:33:24,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 06:33:24,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 06:33:24,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 06:33:24,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 06:33:24,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 06:33:24,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 06:33:24,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 06:33:24,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 06:33:24,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 06:33:24,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 06:33:24,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 06:33:24,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 06:33:24,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 06:33:24,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 06:33:24,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-25 06:33:24,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 06:33:24,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 06:33:24,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 06:33:24,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 06:33:24,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 06:33:24,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 06:33:24,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 06:33:24,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 06:33:24,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 06:33:24,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 06:33:24,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 06:33:24,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 06:33:24,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 06:33:24,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 06:33:24,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 06:33:24,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 06:33:24,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 06:33:24,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 06:33:24,972 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 06:33:24,972 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 06:33:24,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 06:33:24,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:33:24,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 06:33:24,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 06:33:24,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 06:33:24,974 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 06:33:24,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 06:33:24,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 06:33:24,974 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_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-11-25 06:33:25,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 06:33:25,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 06:33:25,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 06:33:25,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 06:33:25,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 06:33:25,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-25 06:33:25,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/data/aa7673ca6/622ad836cb1743ac83391495835a2f19/FLAGeafc35b2c [2021-11-25 06:33:25,862 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 06:33:25,864 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-25 06:33:25,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/data/aa7673ca6/622ad836cb1743ac83391495835a2f19/FLAGeafc35b2c [2021-11-25 06:33:26,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/data/aa7673ca6/622ad836cb1743ac83391495835a2f19 [2021-11-25 06:33:26,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 06:33:26,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 06:33:26,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 06:33:26,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 06:33:26,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 06:33:26,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39901ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26, skipping insertion in model container [2021-11-25 06:33:26,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 06:33:26,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 06:33:26,454 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_d9babf13-280d-480e-a57d-8d487f3d4764/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-25 06:33:26,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:33:26,505 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 06:33:26,518 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_d9babf13-280d-480e-a57d-8d487f3d4764/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-25 06:33:26,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:33:26,548 INFO L208 MainTranslator]: Completed translation [2021-11-25 06:33:26,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26 WrapperNode [2021-11-25 06:33:26,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 06:33:26,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 06:33:26,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 06:33:26,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 06:33:26,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,600 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2021-11-25 06:33:26,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 06:33:26,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 06:33:26,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 06:33:26,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 06:33:26,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 06:33:26,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 06:33:26,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 06:33:26,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 06:33:26,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:26,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:33:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 06:33:26,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 06:33:26,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 06:33:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 06:33:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 06:33:26,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 06:33:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 06:33:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 06:33:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 06:33:26,802 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 06:33:26,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 06:33:26,969 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 06:33:26,989 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 06:33:26,990 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 06:33:26,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:26 BoogieIcfgContainer [2021-11-25 06:33:26,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 06:33:26,993 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 06:33:26,994 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 06:33:27,013 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 06:33:27,013 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:26" (1/1) ... [2021-11-25 06:33:27,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 06:33:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2021-11-25 06:33:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2021-11-25 06:33:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 06:33:27,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:27,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:33:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2021-11-25 06:33:27,574 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2021-11-25 06:33:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 06:33:27,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:27,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:33:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2021-11-25 06:33:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2021-11-25 06:33:27,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 06:33:27,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:27,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 06:33:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2021-11-25 06:33:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2021-11-25 06:33:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 06:33:27,944 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:27,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 06:33:28,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2021-11-25 06:33:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2021-11-25 06:33:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 06:33:28,128 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 06:33:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2021-11-25 06:33:28,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-25 06:33:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 06:33:28,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 06:33:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2021-11-25 06:33:28,442 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2021-11-25 06:33:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 06:33:28,446 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 06:33:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2021-11-25 06:33:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2021-11-25 06:33:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 06:33:28,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-25 06:33:28,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2021-11-25 06:33:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2021-11-25 06:33:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 06:33:28,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-25 06:33:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2021-11-25 06:33:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2021-11-25 06:33:28,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 06:33:28,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-25 06:33:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2021-11-25 06:33:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2021-11-25 06:33:28,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 06:33:28,879 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:28,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:28,959 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-25 06:33:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2021-11-25 06:33:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2021-11-25 06:33:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 06:33:29,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:29,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-25 06:33:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2021-11-25 06:33:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2021-11-25 06:33:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 06:33:29,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:29,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-25 06:33:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2021-11-25 06:33:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2021-11-25 06:33:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 06:33:29,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:29,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-25 06:33:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2021-11-25 06:33:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2021-11-25 06:33:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 06:33:29,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:29,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-25 06:33:30,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2021-11-25 06:33:30,212 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2021-11-25 06:33:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-25 06:33:30,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-25 06:33:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2021-11-25 06:33:30,297 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2021-11-25 06:33:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-25 06:33:30,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-25 06:33:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2021-11-25 06:33:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2021-11-25 06:33:30,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 06:33:30,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-25 06:33:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2021-11-25 06:33:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2021-11-25 06:33:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-25 06:33:30,545 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-25 06:33:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2021-11-25 06:33:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2021-11-25 06:33:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-25 06:33:30,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-25 06:33:30,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:30,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2021-11-25 06:33:30,716 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2021-11-25 06:33:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-25 06:33:30,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:30,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-25 06:33:31,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2021-11-25 06:33:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2021-11-25 06:33:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-25 06:33:31,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:31,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-25 06:33:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2021-11-25 06:33:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2021-11-25 06:33:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 06:33:31,808 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:31,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-25 06:33:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2021-11-25 06:33:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-25 06:33:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-25 06:33:32,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:32,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-25 06:33:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2021-11-25 06:33:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2021-11-25 06:33:33,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-25 06:33:33,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:33,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-25 06:33:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2021-11-25 06:33:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2021-11-25 06:33:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 06:33:33,981 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:33,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-25 06:33:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2021-11-25 06:33:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2021-11-25 06:33:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 06:33:34,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:34,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-11-25 06:33:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2021-11-25 06:33:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2021-11-25 06:33:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 06:33:34,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:34,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-25 06:33:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2021-11-25 06:33:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2021-11-25 06:33:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 06:33:35,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:35,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-25 06:33:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2021-11-25 06:33:35,738 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2021-11-25 06:33:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 06:33:35,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:35,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-25 06:33:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2021-11-25 06:33:36,754 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2021-11-25 06:33:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 06:33:36,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:33:36,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:33:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:33:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-25 06:33:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:33:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2021-11-25 06:33:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2021-11-25 06:33:37,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 06:33:37,568 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2021-11-25 06:33:37,575 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-25 06:33:37,767 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-25 06:33:37,772 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-25 06:33:37,772 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-25 06:33:37,772 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-25 06:33:37,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 06:33:37 ImpRootNode [2021-11-25 06:33:37,773 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 06:33:37,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 06:33:37,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 06:33:37,774 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 06:33:37,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:26" (3/4) ... [2021-11-25 06:33:37,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 06:33:37,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-25 06:33:37,791 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-25 06:33:37,791 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-25 06:33:37,792 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 06:33:37,792 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 06:33:37,902 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 06:33:37,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 06:33:37,903 INFO L158 Benchmark]: Toolchain (without parser) took 11681.88ms. Allocated memory was 86.0MB in the beginning and 186.6MB in the end (delta: 100.7MB). Free memory was 48.9MB in the beginning and 156.7MB in the end (delta: -107.8MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,903 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:33:37,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.35ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 81.5MB in the end (delta: -32.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.60ms. Allocated memory is still 104.9MB. Free memory was 81.5MB in the beginning and 79.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,905 INFO L158 Benchmark]: Boogie Preprocessor took 26.38ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 939.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,905 INFO L158 Benchmark]: RCFGBuilder took 363.67ms. Allocated memory is still 104.9MB. Free memory was 78.7MB in the beginning and 66.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,905 INFO L158 Benchmark]: CodeCheck took 10779.33ms. Allocated memory was 104.9MB in the beginning and 155.2MB in the end (delta: 50.3MB). Free memory was 66.3MB in the beginning and 47.2MB in the end (delta: 19.1MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,906 INFO L158 Benchmark]: Witness Printer took 128.75ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 156.7MB in the end (delta: -109.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-25 06:33:37,909 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 32, 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, 5370 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1401 mSDsCounter, 2960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2960 mSolverCounterUnsat, 2903 mSDtfsCounter, 8321 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 14875 SyntacticMatches, 289 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1938 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 6559/6633 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: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.35ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 81.5MB in the end (delta: -32.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.60ms. Allocated memory is still 104.9MB. Free memory was 81.5MB in the beginning and 79.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.38ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 939.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.67ms. Allocated memory is still 104.9MB. Free memory was 78.7MB in the beginning and 66.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 10779.33ms. Allocated memory was 104.9MB in the beginning and 155.2MB in the end (delta: 50.3MB). Free memory was 66.3MB in the beginning and 47.2MB in the end (delta: 19.1MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Witness Printer took 128.75ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 156.7MB in the end (delta: -109.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-25 06:33:37,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9babf13-280d-480e-a57d-8d487f3d4764/bin/ukojak-d1pc8ZmBRL/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