./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_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/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 [2020-11-28 04:43:00,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:00,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:00,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:00,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:00,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:00,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:00,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:00,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:00,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:00,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:00,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:00,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:00,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:00,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:00,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:00,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:00,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:00,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:00,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:00,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:00,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:00,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:00,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:00,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:00,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:00,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:00,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:00,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:00,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:00,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:00,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:00,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:00,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:00,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:00,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:00,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:00,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:00,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:00,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:00,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:00,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:00,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:00,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:00,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:00,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:00,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:00,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:00,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:00,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:00,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:00,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:00,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:00,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:00,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:00,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:00,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:00,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:00,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:00,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:00,220 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:00,221 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:00,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:00,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:00,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:00,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:00,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:00,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:00,222 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:00,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:00,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:00,225 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_51b4975b-8664-4780-8a75-e012d04fdc54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b3f04ec92be96a6d3b17ca538a3be31737a820 [2020-11-28 04:43:00,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:00,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:00,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:00,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:00,547 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:00,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-11-28 04:43:00,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/data/e50f8b68f/8624c9bcfcb049f4b777bcb079367d6d/FLAG9b0d234dd [2020-11-28 04:43:01,108 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:01,111 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound1.c [2020-11-28 04:43:01,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/data/e50f8b68f/8624c9bcfcb049f4b777bcb079367d6d/FLAG9b0d234dd [2020-11-28 04:43:01,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/data/e50f8b68f/8624c9bcfcb049f4b777bcb079367d6d [2020-11-28 04:43:01,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:01,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:01,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:01,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:01,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:01,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a9c9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01, skipping insertion in model container [2020-11-28 04:43:01,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:01,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:01,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:01,702 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:01,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:01,733 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:01,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01 WrapperNode [2020-11-28 04:43:01,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:01,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:01,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:01,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:01,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:01,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:01,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:01,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:01,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... [2020-11-28 04:43:01,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:01,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:01,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:01,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:01,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/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 [2020-11-28 04:43:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:43:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:43:02,446 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:02,446 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:43:02,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:02 BoogieIcfgContainer [2020-11-28 04:43:02,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:02,449 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:02,450 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:02,459 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:02,460 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:02" (1/1) ... [2020-11-28 04:43:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:02,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:43:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:43:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:43:02,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:43:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:43:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:02,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:02,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:43:02,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-11-28 04:43:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-28 04:43:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:02,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:02,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 04:43:02,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2020-11-28 04:43:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-11-28 04:43:03,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:43:03,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:03,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:03,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2020-11-28 04:43:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-11-28 04:43:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:43:04,176 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:04,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:43:04,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:05,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 22 states and 25 transitions. [2020-11-28 04:43:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-28 04:43:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:43:05,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,356 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-11-28 04:43:05,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:05 ImpRootNode [2020-11-28 04:43:05,425 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:05,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:05,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:05,426 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:05,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:02" (3/4) ... [2020-11-28 04:43:05,429 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:43:05,494 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51b4975b-8664-4780-8a75-e012d04fdc54/bin/ukojak/witness.graphml [2020-11-28 04:43:05,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:05,497 INFO L168 Benchmark]: Toolchain (without parser) took 4025.87 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.9 MB in the beginning and 73.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,504 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 50.5 MB in the beginning and 50.5 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:05,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.76 ms. Allocated memory is still 107.0 MB. Free memory was 75.9 MB in the beginning and 84.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 82.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,507 INFO L168 Benchmark]: Boogie Preprocessor took 31.22 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:05,508 INFO L168 Benchmark]: RCFGBuilder took 634.01 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 61.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,510 INFO L168 Benchmark]: CodeCheck took 2975.61 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 61.8 MB in the beginning and 75.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,511 INFO L168 Benchmark]: Witness Printer took 69.26 ms. Allocated memory is still 130.0 MB. Free memory was 75.8 MB in the beginning and 73.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:05,523 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 244 SDtfs, 12 SDslu, 36 SDs, 0 SdLazy, 496 SolverSat, 224 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 435 GetRequests, 376 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1023 SizeOfPredicates, 7 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 6/7 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 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 50.5 MB in the beginning and 50.5 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.76 ms. Allocated memory is still 107.0 MB. Free memory was 75.9 MB in the beginning and 84.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 82.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.22 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 634.01 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 61.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 2975.61 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 61.8 MB in the beginning and 75.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Witness Printer took 69.26 ms. Allocated memory is still 130.0 MB. Free memory was 75.8 MB in the beginning and 73.7 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...