./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB --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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:57:16,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:57:16,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:57:16,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:57:16,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:57:16,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:57:16,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:57:16,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:57:16,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:57:16,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:57:16,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:57:16,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:57:16,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:57:16,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:57:16,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:57:16,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:57:16,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:57:16,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:57:16,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:57:16,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:57:16,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:57:16,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:57:16,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:57:16,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:57:16,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:57:16,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:57:16,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:57:16,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:57:16,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:57:16,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:57:16,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:57:16,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:57:16,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:57:16,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:57:16,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:57:16,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:57:16,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:57:16,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:57:16,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:57:16,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:57:16,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:57:16,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:57:16,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:57:16,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:57:16,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:57:16,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:57:16,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:57:16,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:57:16,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:57:16,241 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:57:16,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:57:16,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:57:16,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:57:16,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:57:16,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:57:16,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:57:16,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:57:16,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:57:16,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:57:16,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:57:16,245 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:57:16,245 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:57:16,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:57:16,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:57:16,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:57:16,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:57:16,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:57:16,246 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:57:16,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:57:16,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:57:16,247 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_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2022-10-17 16:57:16,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:57:16,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:57:16,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:57:16,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:57:16,597 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:57:16,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2022-10-17 16:57:16,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/data/2f490d55c/6fcc1c8de857462982601660af23ffa0/FLAGf1d1709b9 [2022-10-17 16:57:17,252 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:57:17,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/sv-benchmarks/c/verifythis/elimination_max_rec.c [2022-10-17 16:57:17,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/data/2f490d55c/6fcc1c8de857462982601660af23ffa0/FLAGf1d1709b9 [2022-10-17 16:57:17,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/data/2f490d55c/6fcc1c8de857462982601660af23ffa0 [2022-10-17 16:57:17,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:57:17,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:57:17,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:57:17,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:57:17,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:57:17,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22210998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17, skipping insertion in model container [2022-10-17 16:57:17,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:57:17,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:57:17,773 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_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2022-10-17 16:57:17,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:57:17,813 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:57:17,829 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_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2022-10-17 16:57:17,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:57:17,857 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:57:17,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17 WrapperNode [2022-10-17 16:57:17,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:57:17,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:57:17,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:57:17,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:57:17,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,925 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2022-10-17 16:57:17,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:57:17,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:57:17,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:57:17,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:57:17,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:17,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:57:17,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:57:17,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:57:17,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:57:17,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:57:17" (1/1) ... [2022-10-17 16:57:18,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:57:18,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:57:18,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:57:18,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:57:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:57:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:57:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:57:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:57:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure check [2022-10-17 16:57:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2022-10-17 16:57:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:57:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:57:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:57:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:57:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:57:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:57:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:57:18,228 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:57:18,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:57:18,520 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:57:18,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:57:18,599 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:57:18,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:57:18 BoogieIcfgContainer [2022-10-17 16:57:18,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:57:18,604 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:57:18,604 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:57:18,617 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:57:18,617 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:57:18" (1/1) ... [2022-10-17 16:57:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:57:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2022-10-17 16:57:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-10-17 16:57:18,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:57:18,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:18,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:57:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2022-10-17 16:57:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-10-17 16:57:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:57:19,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:19,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:57:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 52 transitions. [2022-10-17 16:57:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2022-10-17 16:57:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:57:20,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:20,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:57:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 68 transitions. [2022-10-17 16:57:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2022-10-17 16:57:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 16:57:21,961 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:21,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:57:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 75 transitions. [2022-10-17 16:57:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2022-10-17 16:57:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 16:57:23,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:57:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:57:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:57:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 16:57:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:57:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 28 states and 33 transitions. [2022-10-17 16:57:24,075 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-10-17 16:57:24,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:57:24,076 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:57:24,086 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:57:24,159 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:57:24,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:57:24 ImpRootNode [2022-10-17 16:57:24,164 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:57:24,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:57:24,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:57:24,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:57:24,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:57:18" (3/4) ... [2022-10-17 16:57:24,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:57:24,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-10-17 16:57:24,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2022-10-17 16:57:24,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:57:24,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-10-17 16:57:24,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-10-17 16:57:24,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 16:57:24,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:57:24,228 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:57:24,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:57:24,229 INFO L158 Benchmark]: Toolchain (without parser) took 6654.57ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 93.3MB in the beginning and 79.6MB in the end (delta: 13.6MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,230 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:57:24,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.32ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.06ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,231 INFO L158 Benchmark]: Boogie Preprocessor took 61.61ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:57:24,232 INFO L158 Benchmark]: RCFGBuilder took 613.81ms. Allocated memory is still 119.5MB. Free memory was 80.3MB in the beginning and 65.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,233 INFO L158 Benchmark]: CodeCheck took 5560.36ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 81.7MB in the end (delta: -15.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,233 INFO L158 Benchmark]: Witness Printer took 63.47ms. Allocated memory is still 144.7MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:57:24,236 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 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 505 IncrementalHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 125 mSDtfsCounter, 505 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 960 SyntacticMatches, 17 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1316 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 49/71 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: 11]: 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: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.32ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.06ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.61ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 613.81ms. Allocated memory is still 119.5MB. Free memory was 80.3MB in the beginning and 65.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5560.36ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 81.7MB in the end (delta: -15.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Witness Printer took 63.47ms. Allocated memory is still 144.7MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:57:24,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a3ad94c-77bc-46b3-8fa9-5baa4a6aa0bd/bin/ukojak-92XMlrwhuB/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