./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/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 2078f73240fa6cada48e366db3f43ef0ebe005c4 .............................................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 17:10:18,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:10:18,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:10:18,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:10:18,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:10:18,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:10:18,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:10:18,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:10:18,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:10:18,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:10:18,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:10:18,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:10:18,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:10:18,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:10:18,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:10:18,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:10:18,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:10:18,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:10:18,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:10:18,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:10:18,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:10:18,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:10:18,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:10:18,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:10:18,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:10:18,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:10:18,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:10:18,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:10:18,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:10:18,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:10:18,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:10:18,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:10:18,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:10:18,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:10:18,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:10:18,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:10:18,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:10:18,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:10:18,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:10:18,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:10:18,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:10:18,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:10:18,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:10:18,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:10:18,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:10:18,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:10:18,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:10:18,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:10:18,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:10:18,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:10:18,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:10:18,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:10:18,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:10:18,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:10:18,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:10:18,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:10:18,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:10:18,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:10:18,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:10:18,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:10:18,303 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:10:18,303 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:10:18,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:10:18,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:10:18,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:10:18,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:10:18,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:10:18,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:10:18,305 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:10:18,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:10:18,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:10:18,306 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_82fe0141-6a97-4d36-8943-c875a3b5f4d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2078f73240fa6cada48e366db3f43ef0ebe005c4 [2020-12-01 17:10:18,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:10:18,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:10:18,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:10:18,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:10:18,604 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:10:18,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2020-12-01 17:10:18,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/data/a3daa3d2c/4c01819d9851450db8c49efeb7943b72/FLAG84564a7a8 [2020-12-01 17:10:19,272 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:10:19,272 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2020-12-01 17:10:19,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/data/a3daa3d2c/4c01819d9851450db8c49efeb7943b72/FLAG84564a7a8 [2020-12-01 17:10:19,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/data/a3daa3d2c/4c01819d9851450db8c49efeb7943b72 [2020-12-01 17:10:19,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:10:19,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:10:19,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:10:19,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:10:19,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:10:19,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c54dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19, skipping insertion in model container [2020-12-01 17:10:19,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:10:19,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:10:19,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:10:19,903 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:10:19,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:10:19,941 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:10:19,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19 WrapperNode [2020-12-01 17:10:19,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:10:19,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:10:19,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:10:19,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:10:19,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:10:19,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:10:19,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:10:19,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:10:19,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:19,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:20,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:20,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:20,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... [2020-12-01 17:10:20,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:10:20,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:10:20,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:10:20,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:10:20,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:10:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:10:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:10:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:10:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:10:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:10:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 17:10:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 17:10:20,558 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:10:20,558 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 17:10:20,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:20 BoogieIcfgContainer [2020-12-01 17:10:20,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:10:20,562 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:10:20,562 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:10:20,574 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:10:20,575 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:20" (1/1) ... [2020-12-01 17:10:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:10:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-12-01 17:10:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-12-01 17:10:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:10:20,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-01 17:10:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-01 17:10:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:10:20,901 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:21,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:10:21,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:10:21,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-12-01 17:10:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-12-01 17:10:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:10:21,161 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:21,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 17:10:21,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:10:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-12-01 17:10:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-12-01 17:10:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:10:21,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:21,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 17:10:21,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:10:22,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:10:22,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:10:22,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:10:22,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:10:22,043 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:10:22,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 17:10:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:32,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:32,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2020-12-01 17:10:32,740 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2020-12-01 17:10:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:10:32,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:10:32,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 17:10:32,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:10:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:10:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:10:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 26 states and 40 transitions. [2020-12-01 17:10:47,232 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2020-12-01 17:10:47,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:10:47,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:10:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:10:47,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:10:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:10:47,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:10:47,502 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-12-01 17:10:47,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:10:47 ImpRootNode [2020-12-01 17:10:47,541 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:10:47,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:10:47,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:10:47,542 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:10:47,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:10:20" (3/4) ... [2020-12-01 17:10:47,545 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:10:47,617 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_82fe0141-6a97-4d36-8943-c875a3b5f4d2/bin/ukojak/witness.graphml [2020-12-01 17:10:47,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:10:47,621 INFO L168 Benchmark]: Toolchain (without parser) took 27968.75 ms. Allocated memory was 92.3 MB in the beginning and 146.8 MB in the end (delta: 54.5 MB). Free memory was 62.4 MB in the beginning and 105.0 MB in the end (delta: -42.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:10:47,622 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:10:47,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.66 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 62.2 MB in the beginning and 98.9 MB in the end (delta: -36.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:10:47,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 97.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:10:47,627 INFO L168 Benchmark]: Boogie Preprocessor took 26.03 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 96.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:10:47,628 INFO L168 Benchmark]: RCFGBuilder took 551.56 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 72.3 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:10:47,630 INFO L168 Benchmark]: CodeCheck took 26979.12 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 71.8 MB in the beginning and 108.1 MB in the end (delta: -36.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:10:47,631 INFO L168 Benchmark]: Witness Printer took 75.96 ms. Allocated memory is still 146.8 MB. Free memory was 108.1 MB in the beginning and 105.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:10:47,639 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, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.9s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 28 SDslu, 48 SDs, 0 SdLazy, 584 SolverSat, 206 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 33.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 406 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1851 SizeOfPredicates, 11 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/7 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: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int counter = 0; [L21] int x, y; [L22] long long a, b, p, q; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L28] a = x [L29] b = y [L30] p = 1 [L31] q = 0 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [counter=1] [L12] COND FALSE !(!(cond)) VAL [counter=1] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [counter=1] [L36] COND FALSE !(!(a != 0 && b != 0)) [L39] COND TRUE a % 2 == 0 && b % 2 == 0 [L40] a = a / 2 [L41] b = b / 2 [L42] p = 4 * p VAL [counter=1] [L33] EXPR counter++ VAL [counter=2] [L33] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(q == (long long) x * y) VAL [counter=2] [L12] COND TRUE !(cond) VAL [counter=2] [L5] __assert_fail("0", "prod4br-ll.c", 5, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.66 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 62.2 MB in the beginning and 98.9 MB in the end (delta: -36.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 97.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.03 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 96.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 551.56 ms. Allocated memory is still 121.6 MB. Free memory was 96.2 MB in the beginning and 72.3 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * CodeCheck took 26979.12 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 71.8 MB in the beginning and 108.1 MB in the end (delta: -36.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 75.96 ms. Allocated memory is still 146.8 MB. Free memory was 108.1 MB in the beginning and 105.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...