./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-ndecr.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-ndecr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak --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 30650645c50d34fcfc42e8853470c3e29a63ab6d ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:22:26,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:22:26,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:22:26,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:22:26,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:22:26,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:22:26,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:22:26,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:22:26,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:22:26,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:22:26,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:22:26,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:22:26,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:22:26,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:22:26,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:22:26,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:22:26,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:22:26,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:22:26,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:22:26,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:22:26,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:22:26,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:22:26,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:22:26,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:22:26,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:22:26,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:22:26,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:22:26,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:22:26,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:22:26,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:22:26,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:22:26,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:22:26,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:22:26,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:22:26,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:22:26,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:22:26,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:22:26,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:22:26,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:22:26,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:22:26,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:22:26,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:22:26,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:22:26,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:22:26,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:22:26,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:22:26,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:22:26,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:22:26,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:22:26,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:22:26,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:22:26,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:22:26,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:22:26,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:22:26,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:22:26,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:22:26,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:22:26,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:22:26,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:22:26,777 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:22:26,777 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:22:26,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:22:26,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:22:26,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:22:26,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:22:26,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:22:26,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:22:26,779 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:22:26,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:22:26,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:22:26,780 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-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30650645c50d34fcfc42e8853470c3e29a63ab6d [2020-12-01 16:22:27,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:22:27,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:22:27,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:22:27,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:22:27,237 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:22:27,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-ndecr.c [2020-12-01 16:22:27,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/data/049d18411/9cc93b1710b3428b937a0be5dc71ee21/FLAGbe9a32baa [2020-12-01 16:22:27,935 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:22:27,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-ndecr.c [2020-12-01 16:22:27,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/data/049d18411/9cc93b1710b3428b937a0be5dc71ee21/FLAGbe9a32baa [2020-12-01 16:22:28,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/data/049d18411/9cc93b1710b3428b937a0be5dc71ee21 [2020-12-01 16:22:28,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:22:28,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:22:28,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:28,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:22:28,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:22:28,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1671ea73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28, skipping insertion in model container [2020-12-01 16:22:28,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:22:28,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:22:28,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:28,573 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:22:28,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:28,615 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:22:28,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28 WrapperNode [2020-12-01 16:22:28,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:28,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:28,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:22:28,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:22:28,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:28,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:22:28,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:22:28,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:22:28,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... [2020-12-01 16:22:28,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:22:28,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:22:28,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:22:28,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:22:28,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:22:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:22:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:22:29,113 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:22:29,115 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:22:29,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:29 BoogieIcfgContainer [2020-12-01 16:22:29,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:22:29,120 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:22:29,120 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:22:29,132 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:22:29,133 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:29" (1/1) ... [2020-12-01 16:22:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:22:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 16:22:29,191 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 16:22:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 16:22:29,194 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 16:22:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 16:22:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:22:29,473 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:29,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:29,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:29,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:29,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:29,594 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-12-01 16:22:29,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:22:29 ImpRootNode [2020-12-01 16:22:29,617 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:22:29,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:22:29,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:22:29,620 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:22:29,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:29" (3/4) ... [2020-12-01 16:22:29,623 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:22:29,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b80facf6-0166-4bbf-8307-8c5a63f3be14/bin/ukojak/witness.graphml [2020-12-01 16:22:29,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:22:29,678 INFO L168 Benchmark]: Toolchain (without parser) took 1349.27 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.7 MB in the beginning and 65.2 MB in the end (delta: -586.5 kB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:29,680 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:29,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.35 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.3 MB in the beginning and 91.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:29,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 113.2 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 972.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:29,686 INFO L168 Benchmark]: Boogie Preprocessor took 31.06 ms. Allocated memory is still 113.2 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 970.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:29,693 INFO L168 Benchmark]: RCFGBuilder took 422.53 ms. Allocated memory is still 113.2 MB. Free memory was 90.0 MB in the beginning and 79.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:29,695 INFO L168 Benchmark]: CodeCheck took 497.18 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 66.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:29,695 INFO L168 Benchmark]: Witness Printer took 53.48 ms. Allocated memory is still 113.2 MB. Free memory was 66.9 MB in the beginning and 65.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:29,706 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. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int i, n; [L15] n = __VERIFIER_nondet_int() [L16] n - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.35 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.3 MB in the beginning and 91.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 113.2 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 972.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.06 ms. Allocated memory is still 113.2 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 970.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 422.53 ms. Allocated memory is still 113.2 MB. Free memory was 90.0 MB in the beginning and 79.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 497.18 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 66.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 53.48 ms. Allocated memory is still 113.2 MB. Free memory was 66.9 MB in the beginning and 65.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...