./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8b3f04ec92be96a6d3b17ca538a3be31737a820 ............................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 00:36:43,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:36:43,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:36:43,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:36:43,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:36:43,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:36:43,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:36:43,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:36:43,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:36:43,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:36:43,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:36:43,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:36:43,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:36:43,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:36:43,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:36:43,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:36:43,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:36:43,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:36:43,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:36:43,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:36:44,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:36:44,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:36:44,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:36:44,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:36:44,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:36:44,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:36:44,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:36:44,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:36:44,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:36:44,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:36:44,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:36:44,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:36:44,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:36:44,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:36:44,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:36:44,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:36:44,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:36:44,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:36:44,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:36:44,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:36:44,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:36:44,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:36:44,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:36:44,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:36:44,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:36:44,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:36:44,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:36:44,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:36:44,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:36:44,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:36:44,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:36:44,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:36:44,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:36:44,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:36:44,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:36:44,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:36:44,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:36:44,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:36:44,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:36:44,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:36:44,097 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:36:44,098 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:36:44,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:36:44,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:36:44,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:36:44,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:36:44,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:36:44,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:36:44,100 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:36:44,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:36:44,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:36:44,102 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_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b3f04ec92be96a6d3b17ca538a3be31737a820 [2020-11-30 00:36:44,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:36:44,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:36:44,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:36:44,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:36:44,516 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:36:44,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-11-30 00:36:44,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/data/da955a334/8960760d9dba419e9ccbea28a7e41b1f/FLAGcbf43de52 [2020-11-30 00:36:45,269 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:36:45,270 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-11-30 00:36:45,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/data/da955a334/8960760d9dba419e9ccbea28a7e41b1f/FLAGcbf43de52 [2020-11-30 00:36:45,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/data/da955a334/8960760d9dba419e9ccbea28a7e41b1f [2020-11-30 00:36:45,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:36:45,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:36:45,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:45,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:36:45,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:36:45,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:45,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffeb77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45, skipping insertion in model container [2020-11-30 00:36:45,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:45,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:36:45,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:36:45,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:45,881 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:36:45,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:45,935 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:36:45,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45 WrapperNode [2020-11-30 00:36:45,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:45,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:45,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:36:45,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:36:45,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:45,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:45,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:45,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:36:45,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:36:45,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:36:46,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... [2020-11-30 00:36:46,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:36:46,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:36:46,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:36:46,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:36:46,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/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 00:36:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:36:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:36:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:36:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:36:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-30 00:36:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-30 00:36:46,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:36:46,785 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:36:46,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:46 BoogieIcfgContainer [2020-11-30 00:36:46,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:36:46,789 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:36:46,789 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:36:46,802 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:36:46,802 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:46" (1/1) ... [2020-11-30 00:36:46,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:36:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-30 00:36:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-30 00:36:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:36:46,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:36:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:47,003 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 00:36:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:36:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-30 00:36:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-30 00:36:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:36:47,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:36:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:47,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:36:47,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:47,164 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 00:36:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:36:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-11-30 00:36:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-30 00:36:47,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:36:47,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:36:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:47,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 00:36:47,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:47,456 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 00:36:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:36:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2020-11-30 00:36:48,112 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-11-30 00:36:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:36:48,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:36:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:48,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:36:48,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:36:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2020-11-30 00:36:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-11-30 00:36:48,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:36:48,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:36:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:48,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:48,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:49,010 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-30 00:36:49,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:36:49 ImpRootNode [2020-11-30 00:36:49,048 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:36:49,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:36:49,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:36:49,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:36:49,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:46" (3/4) ... [2020-11-30 00:36:49,052 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:36:49,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8caaaf8e-103b-42cb-9b98-51e4b1de55b1/bin/ukojak/witness.graphml [2020-11-30 00:36:49,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:36:49,178 INFO L168 Benchmark]: Toolchain (without parser) took 3547.31 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.3 MB in the beginning and 70.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:49,180 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 71.3 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:49,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.11 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 70.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:49,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.68 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:49,183 INFO L168 Benchmark]: Boogie Preprocessor took 39.19 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 932.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:49,184 INFO L168 Benchmark]: RCFGBuilder took 754.93 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 48.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:49,185 INFO L168 Benchmark]: CodeCheck took 2259.57 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 48.3 MB in the beginning and 72.2 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:49,186 INFO L168 Benchmark]: Witness Printer took 127.14 ms. Allocated memory is still 113.2 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:49,193 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 118 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 198 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 547 SizeOfPredicates, 6 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] int counter = 0; [L22] int a, b; [L23] long long x, y, z; [L25] a = __VERIFIER_nondet_int() [L26] b = __VERIFIER_nondet_int() [L10] COND FALSE !(!cond) [L29] x = a [L30] y = b [L31] z = 0 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [counter=1] [L13] COND FALSE !(!(cond)) VAL [counter=1] [L34] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [counter=1] [L35] COND FALSE !(!(y != 0)) [L38] COND TRUE y % 2 == 1 [L39] z = z + x [L40] y = y - 1 [L42] x = 2 * x [L43] y = y / 2 VAL [counter=1] [L33] EXPR counter++ VAL [counter=2] [L33] COND FALSE !(counter++<1) [L45] CALL __VERIFIER_assert(z == (long long) a * b) VAL [counter=2] [L13] COND TRUE !(cond) VAL [counter=2] [L6] __assert_fail("0", "prodbin-ll.c", 6, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 71.3 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.11 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 70.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.68 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.19 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 932.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 754.93 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 48.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 2259.57 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 48.3 MB in the beginning and 72.2 MB in the end (delta: -24.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 127.14 ms. Allocated memory is still 113.2 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...