./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_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_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/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 fbfa3bfac4b511c6b363106645da3687422db2a8 ........................................................................................................................................................................................................................................................................................................................................................... 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 16:16:18,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:16:18,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:16:18,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:16:18,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:16:18,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:16:18,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:16:18,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:16:18,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:16:18,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:16:18,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:16:18,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:16:18,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:16:18,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:16:18,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:16:18,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:16:18,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:16:18,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:16:18,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:16:18,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:16:18,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:16:18,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:16:18,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:16:18,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:16:18,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:16:18,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:16:18,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:16:18,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:16:18,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:16:18,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:16:18,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:16:18,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:16:18,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:16:18,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:16:18,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:16:18,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:16:18,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:16:18,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:16:18,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:16:18,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:16:18,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:16:18,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:16:18,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:16:18,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:16:18,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:16:18,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:16:18,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:16:18,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:16:18,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:16:18,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:16:18,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:16:18,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:16:18,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:16:18,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:16:18,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:16:18,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:16:18,433 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:16:18,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:16:18,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:16:18,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:16:18,434 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:16:18,434 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:16:18,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:16:18,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:16:18,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:16:18,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:16:18,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:16:18,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:16:18,436 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:16:18,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:16:18,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:16:18,436 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_09c36c38-207a-4b89-9f10-9a0c482046ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbfa3bfac4b511c6b363106645da3687422db2a8 [2020-12-01 16:16:18,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:16:18,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:16:18,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:16:18,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:16:18,743 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:16:18,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2020-12-01 16:16:18,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/data/4636a538d/f26cc8d6ab7444f6968f26a3cfbfd664/FLAG0c90b6c28 [2020-12-01 16:16:19,298 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:16:19,300 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2020-12-01 16:16:19,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/data/4636a538d/f26cc8d6ab7444f6968f26a3cfbfd664/FLAG0c90b6c28 [2020-12-01 16:16:19,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/data/4636a538d/f26cc8d6ab7444f6968f26a3cfbfd664 [2020-12-01 16:16:19,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:16:19,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:16:19,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:16:19,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:16:19,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:16:19,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:19,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a202e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19, skipping insertion in model container [2020-12-01 16:16:19,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:19,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:16:19,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:16:19,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:16:19,924 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:16:19,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:16:19,983 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:16:19,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19 WrapperNode [2020-12-01 16:16:19,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:16:19,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:16:19,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:16:19,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:16:19,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:16:20,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:16:20,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:16:20,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:16:20,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... [2020-12-01 16:16:20,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:16:20,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:16:20,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:16:20,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:16:20,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:16:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/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 16:16:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:16:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:16:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:16:20,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:16:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:16:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:16:20,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:16:20,735 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 16:16:20,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:16:20 BoogieIcfgContainer [2020-12-01 16:16:20,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:16:20,738 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:16:20,738 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:16:20,749 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:16:20,749 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:16:20" (1/1) ... [2020-12-01 16:16:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:16:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 16:16:20,811 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 16:16:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:16:20,813 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:20,964 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 16:16:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 16:16:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 16:16:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:16:20,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:21,144 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 16:16:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2020-12-01 16:16:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2020-12-01 16:16:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:16:21,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:21,399 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 16:16:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2020-12-01 16:16:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2020-12-01 16:16:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:16:21,596 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:16:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 57 transitions. [2020-12-01 16:16:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2020-12-01 16:16:22,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:16:22,172 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:22,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 16:16:22,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 16:16:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 68 transitions. [2020-12-01 16:16:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 68 transitions. [2020-12-01 16:16:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:16:23,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:23,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 16:16:23,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:16:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 44 states and 84 transitions. [2020-12-01 16:16:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 84 transitions. [2020-12-01 16:16:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:16:24,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:24,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:16:24,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:16:26,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 54 states and 129 transitions. [2020-12-01 16:16:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 129 transitions. [2020-12-01 16:16:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:16:26,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:26,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 16:16:26,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:16:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 59 states and 146 transitions. [2020-12-01 16:16:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 146 transitions. [2020-12-01 16:16:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:16:28,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:28,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:16:28,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-01 16:16:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 59 states and 145 transitions. [2020-12-01 16:16:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 145 transitions. [2020-12-01 16:16:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:16:28,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:28,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 16:16:28,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-01 16:16:29,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:29,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 61 states and 148 transitions. [2020-12-01 16:16:29,776 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 148 transitions. [2020-12-01 16:16:29,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:16:29,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:16:29,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 16:16:29,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:16:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:16:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:16:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 66 states and 169 transitions. [2020-12-01 16:16:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 169 transitions. [2020-12-01 16:16:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:16:32,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:16:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:16:32,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:16:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:16:32,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:16:32,452 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2020-12-01 16:16:32,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:16:32 ImpRootNode [2020-12-01 16:16:32,499 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:16:32,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:16:32,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:16:32,500 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:16:32,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:16:20" (3/4) ... [2020-12-01 16:16:32,502 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:16:32,607 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_09c36c38-207a-4b89-9f10-9a0c482046ff/bin/ukojak/witness.graphml [2020-12-01 16:16:32,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:16:32,612 INFO L168 Benchmark]: Toolchain (without parser) took 12955.19 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 59.3 MB in the beginning and 134.8 MB in the end (delta: -75.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:16:32,613 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:16:32,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.62 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 70.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:16:32,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.22 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 68.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:16:32,616 INFO L168 Benchmark]: Boogie Preprocessor took 49.73 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 67.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:16:32,618 INFO L168 Benchmark]: RCFGBuilder took 637.00 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 48.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:16:32,619 INFO L168 Benchmark]: CodeCheck took 11760.59 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 47.9 MB in the beginning and 138.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:16:32,619 INFO L168 Benchmark]: Witness Printer took 110.36 ms. Allocated memory is still 163.6 MB. Free memory was 138.0 MB in the beginning and 134.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:16:32,622 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, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.6s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36464 SDtfs, 4820 SDslu, 9076 SDs, 0 SdLazy, 41172 SolverSat, 13452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2091 GetRequests, 1917 SyntacticMatches, 28 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8644 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 15934 SizeOfPredicates, 15 NumberOfNonLiveVariables, 672 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 136/138 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: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int A, B; [L25] unsigned int r, d, p, q; [L26] A = __VERIFIER_nondet_uint() [L27] B = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L30] r = A [L31] d = B [L32] p = 1 [L33] q = 0 VAL [counter=0] [L35] EXPR counter++ VAL [counter=1] [L35] COND TRUE counter++<1 [L36] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L37] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(r == A) VAL [counter=1] [L38] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L38] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L39] COND FALSE !(!(r >= d)) [L41] d = 2 * d [L42] p = 2 * p VAL [counter=1] [L35] EXPR counter++ VAL [counter=2] [L35] COND FALSE !(counter++<1) [L45] EXPR counter++ VAL [counter=3] [L45] COND FALSE !(counter++<1) [L59] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L59] RET __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L60] CALL __VERIFIER_assert(B == d) VAL [counter=3] [L15] COND TRUE !(cond) VAL [counter=3] [L8] __assert_fail("0", "hard-u.c", 8, "reach_error") VAL [counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.62 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 70.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.22 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 68.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.73 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 67.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 637.00 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 48.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 11760.59 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 47.9 MB in the beginning and 138.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. * Witness Printer took 110.36 ms. Allocated memory is still 163.6 MB. Free memory was 138.0 MB in the beginning and 134.8 MB in the end (delta: 3.1 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...