./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b6c190b845f4496788acb9553cb85e1e7dace14 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:50:40,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:50:40,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:50:40,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:50:40,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:50:40,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:50:40,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:50:40,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:50:40,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:50:40,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:50:40,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:50:40,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:50:40,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:50:40,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:50:40,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:50:40,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:50:40,545 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:50:40,547 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:50:40,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:50:40,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:50:40,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:50:40,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:50:40,553 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:50:40,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:50:40,553 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:50:40,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:50:40,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:50:40,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:50:40,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:50:40,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:50:40,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:50:40,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:50:40,558 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:50:40,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:50:40,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:50:40,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:50:40,560 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 14:50:40,571 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:50:40,571 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:50:40,572 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:50:40,572 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 14:50:40,572 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:50:40,572 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:50:40,572 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:50:40,573 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:50:40,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:50:40,574 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:50:40,574 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:50:40,574 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:50:40,574 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 14:50:40,574 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 14:50:40,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 14:50:40,575 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:50:40,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:50:40,576 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6c190b845f4496788acb9553cb85e1e7dace14 [2018-11-23 14:50:40,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:50:40,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:50:40,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:50:40,612 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:50:40,612 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:50:40,613 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c [2018-11-23 14:50:40,652 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/data/da9393b6c/884d7dce5f05422096592c18c7f968a5/FLAGc1d1cc733 [2018-11-23 14:50:41,053 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:50:41,053 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/sv-benchmarks/c/recursive-simple/id_o3_false-unreach-call_true-termination_true-no-overflow.c [2018-11-23 14:50:41,057 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/data/da9393b6c/884d7dce5f05422096592c18c7f968a5/FLAGc1d1cc733 [2018-11-23 14:50:41,066 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/data/da9393b6c/884d7dce5f05422096592c18c7f968a5 [2018-11-23 14:50:41,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:50:41,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:50:41,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:50:41,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:50:41,074 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:50:41,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e45308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41, skipping insertion in model container [2018-11-23 14:50:41,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:50:41,094 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:50:41,203 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:50:41,205 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:50:41,214 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:50:41,222 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:50:41,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41 WrapperNode [2018-11-23 14:50:41,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:50:41,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:50:41,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:50:41,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:50:41,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:50:41,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:50:41,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:50:41,251 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:50:41,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:50:41,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:50:41,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:50:41,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:50:41,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/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 [2018-11-23 14:50:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:50:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:50:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-23 14:50:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-23 14:50:41,466 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:50:41,466 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 14:50:41,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41 BoogieIcfgContainer [2018-11-23 14:50:41,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:50:41,467 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 14:50:41,467 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 14:50:41,476 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 14:50:41,477 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41" (1/1) ... [2018-11-23 14:50:41,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:50:41,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:50:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-23 14:50:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-23 14:50:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:50:41,523 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:50:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:50:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:50:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:50:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-11-23 14:50:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-23 14:50:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 14:50:41,816 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:50:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:50:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:50:42,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:50:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-11-23 14:50:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-23 14:50:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 14:50:42,200 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:50:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:50:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 14:50:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:50:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2018-11-23 14:50:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-11-23 14:50:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:50:42,648 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:50:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:50:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:50:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:50:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:50:42,724 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0;main_~input~0 := main_#t~nondet1;havoc main_#t~nondet1; [?] CALL call main_#t~ret2 := id(main_~input~0); VAL [|id_#in~x|=(- 12884901885)] [?] ~x := #in~x; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901886)] [?] ~x := #in~x; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901887)] [?] ~x := #in~x; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901888)] [?] ~x := #in~x; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888)] [?] assume 0 == ~x % 4294967296;#res := 0; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888), |id_#res|=0] [?] assume true; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888), |id_#res|=0] [?] RET #26#return; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#t~ret0|=0] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#res|=1] [?] assume true; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#res|=1] [?] RET #26#return; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#t~ret0|=1] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#res|=2] [?] assume true; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#res|=2] [?] RET #26#return; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#t~ret0|=2] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#res|=3] [?] assume true; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#res|=3] [?] RET #24#return; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), |ULTIMATE.start_main_#t~ret2|=3] [?] main_~result~0 := main_#t~ret2;havoc main_#t~ret2; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] assume 3 == main_~result~0 % 4294967296; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] assume !false; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] assume 0 == ~x % 4294967296; [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L4-L7] ensures true; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L4-L7] ensures true; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L4-L7] ensures true; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L4-L7] ensures true; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12-L14] assume 3 == main_~result~0 % 4294967296; VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] assume 0 == ~x % 4294967296; [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L4-L7] ensures true; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L4-L7] ensures true; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L4-L7] ensures true; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L4-L7] ensures true; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12-L14] assume 3 == main_~result~0 % 4294967296; VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12] COND TRUE 3 == main_~result~0 % 4294967296 VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12] COND TRUE 3 == main_~result~0 % 4294967296 VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] [L10] ~input~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call #t~ret2 := id(~input~0); [L11] ~result~0 := #t~ret2; [L11] havoc #t~ret2; [L12] COND TRUE 3 == ~result~0 % 4294967296 [L13] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10] ~input~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call #t~ret2 := id(~input~0); [L11] ~result~0 := #t~ret2; [L11] havoc #t~ret2; [L12] COND TRUE 3 == ~result~0 % 4294967296 [L13] assert false; [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 [L13] __VERIFIER_error() ----- [2018-11-23 14:50:42,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 02:50:42 ImpRootNode [2018-11-23 14:50:42,773 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 14:50:42,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:50:42,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:50:42,774 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:50:42,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41" (3/4) ... [2018-11-23 14:50:42,776 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0;main_~input~0 := main_#t~nondet1;havoc main_#t~nondet1; [?] CALL call main_#t~ret2 := id(main_~input~0); VAL [|id_#in~x|=(- 12884901885)] [?] ~x := #in~x; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901886)] [?] ~x := #in~x; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901887)] [?] ~x := #in~x; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887)] [?] assume !(0 == ~x % 4294967296); VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887)] [?] CALL call #t~ret0 := id(~x - 1); VAL [|id_#in~x|=(- 12884901888)] [?] ~x := #in~x; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888)] [?] assume 0 == ~x % 4294967296;#res := 0; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888), |id_#res|=0] [?] assume true; VAL [id_~x=(- 12884901888), |id_#in~x|=(- 12884901888), |id_#res|=0] [?] RET #26#return; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#t~ret0|=0] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#res|=1] [?] assume true; VAL [id_~x=(- 12884901887), |id_#in~x|=(- 12884901887), |id_#res|=1] [?] RET #26#return; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#t~ret0|=1] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#res|=2] [?] assume true; VAL [id_~x=(- 12884901886), |id_#in~x|=(- 12884901886), |id_#res|=2] [?] RET #26#return; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#t~ret0|=2] [?] #res := 1 + #t~ret0;havoc #t~ret0; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#res|=3] [?] assume true; VAL [id_~x=(- 12884901885), |id_#in~x|=(- 12884901885), |id_#res|=3] [?] RET #24#return; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), |ULTIMATE.start_main_#t~ret2|=3] [?] main_~result~0 := main_#t~ret2;havoc main_#t~ret2; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] assume 3 == main_~result~0 % 4294967296; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] assume !false; VAL [ULTIMATE.start_main_~input~0=(- 12884901885), ULTIMATE.start_main_~result~0=3] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] assume 0 == ~x % 4294967296; [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L4-L7] ensures true; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L4-L7] ensures true; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L4-L7] ensures true; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L4-L7] ensures true; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12-L14] assume 3 == main_~result~0 % 4294967296; VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] assume !(0 == ~x % 4294967296); VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] assume 0 == ~x % 4294967296; [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L4-L7] ensures true; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L4-L7] ensures true; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L4-L7] ensures true; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L4-L7] ensures true; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12-L14] assume 3 == main_~result~0 % 4294967296; VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12] COND TRUE 3 == main_~result~0 % 4294967296 VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0; [L10] main_~input~0 := main_#t~nondet1; [L10] havoc main_#t~nondet1; [L11] CALL call main_#t~ret2 := id(main_~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call main_#t~ret2 := id(main_~input~0); VAL [main_#t~ret2=3, main_~input~0=-12884901885] [L11] main_~result~0 := main_#t~ret2; [L11] havoc main_#t~ret2; VAL [main_~input~0=-12884901885, main_~result~0=3] [L12] COND TRUE 3 == main_~result~0 % 4294967296 VAL [main_~input~0=-12884901885, main_~result~0=3] [L13] assert false; VAL [main_~input~0=-12884901885, main_~result~0=3] [L10] ~input~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call #t~ret2 := id(~input~0); [L11] ~result~0 := #t~ret2; [L11] havoc #t~ret2; [L12] COND TRUE 3 == ~result~0 % 4294967296 [L13] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L10] ~input~0 := #t~nondet1; [L10] havoc #t~nondet1; [L11] CALL call #t~ret2 := id(~input~0); VAL [#in~x=-12884901885] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901885, ~x=-12884901885] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901885, ~x=-12884901885] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901886, ~x=-12884901886] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901886, ~x=-12884901886] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901887, ~x=-12884901887] [L5] COND FALSE !(0 == ~x % 4294967296) VAL [#in~x=-12884901887, ~x=-12884901887] [L6] CALL call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901888] [L4-L7] ~x := #in~x; VAL [#in~x=-12884901888, ~x=-12884901888] [L5] COND TRUE 0 == ~x % 4294967296 [L5] #res := 0; VAL [#in~x=-12884901888, #res=0, ~x=-12884901888] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901887, #t~ret0=0, ~x=-12884901887] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901887, #res=1, ~x=-12884901887] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901886, #t~ret0=1, ~x=-12884901886] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901886, #res=2, ~x=-12884901886] [L6] RET call #t~ret0 := id(~x - 1); VAL [#in~x=-12884901885, #t~ret0=2, ~x=-12884901885] [L6] #res := 1 + #t~ret0; [L6] havoc #t~ret0; VAL [#in~x=-12884901885, #res=3, ~x=-12884901885] [L11] RET call #t~ret2 := id(~input~0); [L11] ~result~0 := #t~ret2; [L11] havoc #t~ret2; [L12] COND TRUE 3 == ~result~0 % 4294967296 [L13] assert false; [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 [L13] __VERIFIER_error() ----- [2018-11-23 14:50:42,839 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cac31f33-dd40-4b38-a447-1c1ecd94ccea/bin-2019/ukojak/witness.graphml [2018-11-23 14:50:42,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:50:42,840 INFO L168 Benchmark]: Toolchain (without parser) took 1771.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 952.7 MB in the beginning and 949.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 151.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,842 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:50:42,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.62 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,844 INFO L168 Benchmark]: Boogie Preprocessor took 15.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:50:42,844 INFO L168 Benchmark]: RCFGBuilder took 200.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,845 INFO L168 Benchmark]: CodeCheck took 1306.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.1 MB in the end (delta: 178.8 MB). Peak memory consumption was 178.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,846 INFO L168 Benchmark]: Witness Printer took 66.25 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 949.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:50:42,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 20 SDslu, 32 SDs, 0 SdLazy, 168 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 266 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.62 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 200.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1306.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.1 MB in the end (delta: 178.8 MB). Peak memory consumption was 178.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.25 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 949.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...