./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.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_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/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 8faf10aa923bb224adb2f6131dd138bdff3c99e0 ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:42:00,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:00,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:00,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:00,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:00,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:00,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:00,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:00,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:00,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:00,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:00,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:00,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:00,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:00,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:00,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:00,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:00,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:00,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:00,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:00,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:00,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:00,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:00,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:00,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:00,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:00,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:00,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:00,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:00,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:00,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:00,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:00,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:00,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:00,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:00,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:00,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:00,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:00,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:00,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:00,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:00,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:42:00,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:00,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:00,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:00,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:00,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:00,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:00,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:00,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:00,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:00,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:00,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:00,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:00,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:00,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:00,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:00,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:00,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:00,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:00,224 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:00,224 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:00,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:00,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:00,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:00,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:00,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:00,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:00,226 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:00,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:00,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:00,226 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_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faf10aa923bb224adb2f6131dd138bdff3c99e0 [2020-11-28 04:42:00,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:00,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:00,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:00,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:00,501 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:00,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-11-28 04:42:00,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/data/958612a20/63fae1c2cfa048b6b4cbac175f47b661/FLAG4cc679b39 [2020-11-28 04:42:01,091 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:01,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-11-28 04:42:01,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/data/958612a20/63fae1c2cfa048b6b4cbac175f47b661/FLAG4cc679b39 [2020-11-28 04:42:01,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/data/958612a20/63fae1c2cfa048b6b4cbac175f47b661 [2020-11-28 04:42:01,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:01,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:01,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:01,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:01,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:01,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10439791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01, skipping insertion in model container [2020-11-28 04:42:01,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:01,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:01,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:01,741 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:01,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:01,778 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:01,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01 WrapperNode [2020-11-28 04:42:01,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:01,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:01,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:01,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:01,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:01,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:01,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:01,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:01,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2020-11-28 04:42:01,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:01,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:01,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:01,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:01,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/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 04:42:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:42:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:42:02,412 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:02,413 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:42:02,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:02 BoogieIcfgContainer [2020-11-28 04:42:02,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:02,416 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:02,416 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:02,427 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:02,428 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:02" (1/1) ... [2020-11-28 04:42:02,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:42:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:42:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:02,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:02,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:42:02,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:02,764 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 04:42:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-28 04:42:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-28 04:42:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:42:02,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:02,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:42:02,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:03,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:42:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2020-11-28 04:42:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2020-11-28 04:42:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:03,592 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:03,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:42:03,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2020-11-28 04:42:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-11-28 04:42:03,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:42:03,966 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:42:04,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:42:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2020-11-28 04:42:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2020-11-28 04:42:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:42:04,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 04:42:04,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:04,762 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:42:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 17 states and 21 transitions. [2020-11-28 04:42:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-11-28 04:42:05,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:42:05,730 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-11-28 04:42:05,735 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:42:05,840 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:42:05,843 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:42:05,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:05 ImpRootNode [2020-11-28 04:42:05,843 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:05,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:05,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:05,844 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:05,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:02" (3/4) ... [2020-11-28 04:42:05,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:42:05,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:42:05,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 04:42:05,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:42:05,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:42:05,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:42:05,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_de9bbb40-8a86-45dd-b9ee-7ea739cc8127/bin/ukojak/witness.graphml [2020-11-28 04:42:05,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:05,895 INFO L168 Benchmark]: Toolchain (without parser) took 4415.98 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 70.5 MB in the beginning and 36.1 MB in the end (delta: 34.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,896 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:05,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.19 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 78.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.96 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,897 INFO L168 Benchmark]: Boogie Preprocessor took 40.42 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.9 MB in the end (delta: 592.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:05,898 INFO L168 Benchmark]: RCFGBuilder took 550.89 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 59.7 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,899 INFO L168 Benchmark]: CodeCheck took 3427.80 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.7 MB in the beginning and 38.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,899 INFO L168 Benchmark]: Witness Printer took 49.73 ms. Allocated memory is still 121.6 MB. Free memory was 38.2 MB in the beginning and 36.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,903 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, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 176 SDtfs, 148 SDslu, 192 SDs, 0 SdLazy, 856 SolverSat, 356 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 583 SyntacticMatches, 14 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 5445 SizeOfPredicates, 12 NumberOfNonLiveVariables, 382 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 44/54 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 - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.19 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 78.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.96 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.42 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.9 MB in the end (delta: 592.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 550.89 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 59.7 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 3427.80 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.7 MB in the beginning and 38.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Witness Printer took 49.73 ms. Allocated memory is still 121.6 MB. Free memory was 38.2 MB in the beginning and 36.1 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 correct! Received shutdown request...