./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/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 914e210bb2ee753bbbdbfa23a6e9397216225fad ....................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-30 00:09:19,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:09:19,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:09:20,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:09:20,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:09:20,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:09:20,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:09:20,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:09:20,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:09:20,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:09:20,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:09:20,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:09:20,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:09:20,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:09:20,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:09:20,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:09:20,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:09:20,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:09:20,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:09:20,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:09:20,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:09:20,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:09:20,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:09:20,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:09:20,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:09:20,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:09:20,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:09:20,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:09:20,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:09:20,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:09:20,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:09:20,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:09:20,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:09:20,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:09:20,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:09:20,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:09:20,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:09:20,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:09:20,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:09:20,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:09:20,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:09:20,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 00:09:20,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:09:20,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:09:20,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:09:20,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:09:20,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:09:20,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:09:20,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:09:20,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:09:20,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:09:20,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:09:20,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:09:20,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:09:20,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:09:20,177 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:09:20,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:09:20,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:09:20,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:09:20,178 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:09:20,178 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:09:20,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:09:20,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:09:20,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:09:20,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:09:20,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:09:20,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:09:20,180 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:09:20,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:09:20,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:09:20,181 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_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 914e210bb2ee753bbbdbfa23a6e9397216225fad [2020-11-30 00:09:20,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:09:20,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:09:20,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:09:20,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:09:20,504 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:09:20,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2020-11-30 00:09:20,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/data/b3d0eeeec/2e63a7bc8b2c429db3252cb02b6b74cd/FLAG38c657e17 [2020-11-30 00:09:21,052 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:09:21,052 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2020-11-30 00:09:21,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/data/b3d0eeeec/2e63a7bc8b2c429db3252cb02b6b74cd/FLAG38c657e17 [2020-11-30 00:09:21,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/data/b3d0eeeec/2e63a7bc8b2c429db3252cb02b6b74cd [2020-11-30 00:09:21,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:09:21,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:09:21,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:09:21,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:09:21,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:09:21,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba6f427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21, skipping insertion in model container [2020-11-30 00:09:21,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:09:21,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:09:21,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:09:21,643 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:09:21,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:09:21,677 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:09:21,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21 WrapperNode [2020-11-30 00:09:21,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:09:21,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:09:21,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:09:21,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:09:21,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:09:21,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:09:21,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:09:21,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:09:21,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... [2020-11-30 00:09:21,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:09:21,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:09:21,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:09:21,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:09:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/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 [2020-11-30 00:09:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:09:21,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:09:22,127 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:09:22,127 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:09:22,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:22 BoogieIcfgContainer [2020-11-30 00:09:22,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:09:22,130 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:09:22,130 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:09:22,141 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:09:22,141 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:22" (1/1) ... [2020-11-30 00:09:22,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:09:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-30 00:09:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-30 00:09:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:09:22,189 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:09:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:09:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-30 00:09:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-30 00:09:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:09:22,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:09:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:09:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-11-30 00:09:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-30 00:09:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:09:22,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:09:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:09:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-30 00:09:22,662 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-30 00:09:22,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:09:22,663 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:09:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:22,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:22,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:22,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:22,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:22,764 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2020-11-30 00:09:22,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:09:22 ImpRootNode [2020-11-30 00:09:22,786 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:09:22,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:09:22,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:09:22,788 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:09:22,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:22" (3/4) ... [2020-11-30 00:09:22,792 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:09:22,856 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fe006ef-e702-4a7d-ae50-9daa2ab9af8e/bin/ukojak/witness.graphml [2020-11-30 00:09:22,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:09:22,859 INFO L168 Benchmark]: Toolchain (without parser) took 1424.43 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.8 MB in the beginning and 64.3 MB in the end (delta: -22.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,860 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.20 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 72.2 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:22,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.97 ms. Allocated memory is still 92.3 MB. Free memory was 72.2 MB in the beginning and 70.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,863 INFO L168 Benchmark]: Boogie Preprocessor took 29.43 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 69.8 MB in the end (delta: 872.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,866 INFO L168 Benchmark]: RCFGBuilder took 378.60 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 58.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:22,867 INFO L168 Benchmark]: CodeCheck took 655.40 ms. Allocated memory is still 92.3 MB. Free memory was 58.2 MB in the beginning and 66.0 MB in the end (delta: -7.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,867 INFO L168 Benchmark]: Witness Printer took 68.26 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 64.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:22,873 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, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 26 SDslu, 24 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L20] COND TRUE x > 0 && y > 0 && z > 0 [L21] COND TRUE y > x [L22] y = z [L23] x = __VERIFIER_nondet_int() [L24] x - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.20 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 72.2 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.97 ms. Allocated memory is still 92.3 MB. Free memory was 72.2 MB in the beginning and 70.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.43 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 69.8 MB in the end (delta: 872.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 378.60 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 58.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 655.40 ms. Allocated memory is still 92.3 MB. Free memory was 58.2 MB in the beginning and 66.0 MB in the end (delta: -7.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 68.26 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 64.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...