./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.16.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_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/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_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/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_b99d1a93-6980-420b-8710-1fd76f09ce25/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 49a260b41897f9175c064887b5a7e346062ed9cdacb52920f3bad2e734db5643 --- 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 16:43:52,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:43:52,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:43:52,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:43:52,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:43:52,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:43:52,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:43:52,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:43:52,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:43:52,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:43:52,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:43:52,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:43:52,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:43:52,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:43:52,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:43:52,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:43:52,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:43:52,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:43:52,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:43:52,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:43:52,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:43:52,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:43:52,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:43:52,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:43:52,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:43:52,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:43:52,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:43:52,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:43:52,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:43:52,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:43:52,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:43:52,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:43:52,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:43:52,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:43:52,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:43:52,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:43:52,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:43:52,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:43:52,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:43:52,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:43:52,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:43:52,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:43:52,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:43:52,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:43:52,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:43:52,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:43:52,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:43:52,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:43:52,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:43:52,420 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:43:52,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:43:52,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:43:52,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:43:52,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:43:52,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:43:52,421 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:43:52,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:43:52,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:43:52,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:43:52,422 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:43:52,422 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:43:52,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:43:52,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:52,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:43:52,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:43:52,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:43:52,424 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:43:52,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:43:52,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:43:52,424 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_b99d1a93-6980-420b-8710-1fd76f09ce25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49a260b41897f9175c064887b5a7e346062ed9cdacb52920f3bad2e734db5643 [2022-10-17 16:43:52,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:43:52,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:43:52,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:43:52,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:43:52,757 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:43:52,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.16.c [2022-10-17 16:43:52,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/data/ce1559bec/58511c73464a446694d0ef184c3bc1f1/FLAGf36413f42 [2022-10-17 16:43:53,352 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:43:53,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.16.c [2022-10-17 16:43:53,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/data/ce1559bec/58511c73464a446694d0ef184c3bc1f1/FLAGf36413f42 [2022-10-17 16:43:53,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/data/ce1559bec/58511c73464a446694d0ef184c3bc1f1 [2022-10-17 16:43:53,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:43:53,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:43:53,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:53,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:43:53,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:43:53,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:53,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71faaa19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53, skipping insertion in model container [2022-10-17 16:43:53,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:53,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:43:53,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:43:53,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:53,931 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:43:53,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:53,985 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:43:53,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53 WrapperNode [2022-10-17 16:43:53,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:53,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:53,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:43:53,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:43:53,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,019 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-10-17 16:43:54,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:54,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:43:54,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:43:54,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:43:54,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:43:54,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:43:54,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:43:54,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:43:54,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:53" (1/1) ... [2022-10-17 16:43:54,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:54,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:43:54,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:43:54,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:43:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:43:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:43:54,194 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:43:54,196 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:43:54,318 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:43:54,351 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:43:54,351 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:43:54,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:54 BoogieIcfgContainer [2022-10-17 16:43:54,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:43:54,357 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:43:54,357 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:43:54,368 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:43:54,369 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:54" (1/1) ... [2022-10-17 16:43:54,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:43:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:54,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-10-17 16:43:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-10-17 16:43:54,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:43:54,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:54,676 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 16:43:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-10-17 16:43:54,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-10-17 16:43:54,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:43:54,765 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:54,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:43:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:54,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:43:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:54,860 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:43:54,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:43:54 ImpRootNode [2022-10-17 16:43:54,884 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:43:54,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:43:54,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:43:54,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:43:54,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:54" (3/4) ... [2022-10-17 16:43:54,888 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:43:54,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:43:54,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:43:54,925 INFO L158 Benchmark]: Toolchain (without parser) took 1190.76ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 48.1MB in the beginning and 59.9MB in the end (delta: -11.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-10-17 16:43:54,926 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 81.8MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:43:54,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.32ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 87.1MB in the end (delta: -39.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:43:54,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.79ms. Allocated memory is still 109.1MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:43:54,932 INFO L158 Benchmark]: Boogie Preprocessor took 20.04ms. Allocated memory is still 109.1MB. Free memory was 85.7MB in the beginning and 85.0MB in the end (delta: 699.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:43:54,935 INFO L158 Benchmark]: RCFGBuilder took 314.16ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 75.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:43:54,936 INFO L158 Benchmark]: CodeCheck took 527.10ms. Allocated memory is still 109.1MB. Free memory was 75.6MB in the beginning and 61.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:43:54,938 INFO L158 Benchmark]: Witness Printer took 39.13ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 59.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:43:54,946 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [L27] x = y VAL [x=-2147483648, y=-2147483648] [L28] y - 1 VAL [x=-2147483648, y=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 81.8MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.32ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 87.1MB in the end (delta: -39.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.79ms. Allocated memory is still 109.1MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.04ms. Allocated memory is still 109.1MB. Free memory was 85.7MB in the beginning and 85.0MB in the end (delta: 699.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.16ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 75.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 527.10ms. Allocated memory is still 109.1MB. Free memory was 75.6MB in the beginning and 61.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 39.13ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 59.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:43:55,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b99d1a93-6980-420b-8710-1fd76f09ce25/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)