./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/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_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee0ccea6b90e9b6a2f2fc862a3a7704844534359e41607705cde2a5dfc759de7 --- 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 16:46:35,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:35,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:35,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:35,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:35,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:35,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:35,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:35,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:35,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:35,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:35,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:35,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:35,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:35,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:35,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:35,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:35,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:35,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:35,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:35,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:35,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:35,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:35,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:35,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:35,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:35,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:35,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:35,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:35,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:35,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:35,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:35,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:35,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:35,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:35,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:35,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:35,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:35,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:35,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:35,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:35,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:46:35,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:35,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:35,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:35,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:35,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:35,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:35,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:35,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:46:35,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:35,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:35,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:35,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:35,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:35,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:46:35,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:35,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:35,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:35,256 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:35,256 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:35,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:35,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:35,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:35,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:35,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:35,258 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:35,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:35,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:35,259 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_0de7b215-c0c5-45fa-93b2-a92d598be3e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee0ccea6b90e9b6a2f2fc862a3a7704844534359e41607705cde2a5dfc759de7 [2022-10-17 16:46:35,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:35,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:35,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:35,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:35,547 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:35,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2022-10-17 16:46:35,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/data/d8dab4431/58d752b098c04ec597f3ff1fc7067925/FLAG0a5fdce47 [2022-10-17 16:46:36,034 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:36,035 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10.c [2022-10-17 16:46:36,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/data/d8dab4431/58d752b098c04ec597f3ff1fc7067925/FLAG0a5fdce47 [2022-10-17 16:46:36,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/data/d8dab4431/58d752b098c04ec597f3ff1fc7067925 [2022-10-17 16:46:36,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:36,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:36,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:36,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:36,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:36,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b24bcd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36, skipping insertion in model container [2022-10-17 16:46:36,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:36,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:36,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:36,677 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:36,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:36,709 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:36,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36 WrapperNode [2022-10-17 16:46:36,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:36,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:36,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:36,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:36,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,747 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-10-17 16:46:36,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:36,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:36,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:36,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:36,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:36,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:36,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:36,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:36,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:36" (1/1) ... [2022-10-17 16:46:36,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:36,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:36,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:36,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:36,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:36,915 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:36,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:37,032 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:37,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:37,054 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:46:37,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:37 BoogieIcfgContainer [2022-10-17 16:46:37,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:37,058 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:37,058 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:37,070 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:37,070 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:37" (1/1) ... [2022-10-17 16:46:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-10-17 16:46:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-10-17 16:46:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:46:37,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:37,393 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 16:46:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-10-17 16:46:37,485 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-10-17 16:46:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:46:37,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:37,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:37,575 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 16:46:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-10-17 16:46:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-10-17 16:46:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:46:37,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:37,917 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 16:46:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2022-10-17 16:46:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2022-10-17 16:46:38,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:38,266 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:38,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:38,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:38,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:38,321 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-10-17 16:46:38,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:38 ImpRootNode [2022-10-17 16:46:38,349 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:38,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:38,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:38,352 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:38,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:37" (3/4) ... [2022-10-17 16:46:38,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:38,407 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:38,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:38,408 INFO L158 Benchmark]: Toolchain (without parser) took 1948.36ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 59.5MB in the beginning and 75.2MB in the end (delta: -15.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,409 INFO L158 Benchmark]: CDTParser took 1.53ms. Allocated memory is still 86.0MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:38,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.64ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 62.3MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.25ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 61.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,416 INFO L158 Benchmark]: Boogie Preprocessor took 21.94ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 60.1MB in the end (delta: 952.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:38,419 INFO L158 Benchmark]: RCFGBuilder took 286.42ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 50.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,421 INFO L158 Benchmark]: CodeCheck took 1291.32ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 50.7MB in the beginning and 77.2MB in the end (delta: -26.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,421 INFO L158 Benchmark]: Witness Printer took 55.67ms. Allocated memory is still 119.5MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:38,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 && y < 0 VAL [x=1, y=-2147483648] [L27] EXPR x + y [L27] x = x + y VAL [x=-2147483647, y=-2147483648] [L28] y - 1 VAL [x=-2147483647, y=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53ms. Allocated memory is still 86.0MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.64ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 62.3MB in the end (delta: -3.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.25ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 61.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.94ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 60.1MB in the end (delta: 952.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.42ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 50.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1291.32ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 50.7MB in the beginning and 77.2MB in the end (delta: -26.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 55.67ms. Allocated memory is still 119.5MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:38,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de7b215-c0c5-45fa-93b2-a92d598be3e5/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)