./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/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 7be07080670d55b62a9775acd64fddabe08b2aaa ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:24:56,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:24:56,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:24:56,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:24:56,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:24:56,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:24:56,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:24:56,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:24:56,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:24:56,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:24:56,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:24:56,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:24:56,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:24:56,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:24:56,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:24:56,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:24:56,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:24:56,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:24:56,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:24:56,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:24:56,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:24:56,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:24:56,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:24:56,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:24:56,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:24:56,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:24:56,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:24:56,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:24:56,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:24:56,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:24:56,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:24:56,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:24:56,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:24:56,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:24:56,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:24:56,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:24:56,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:24:56,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:24:56,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:24:56,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:24:56,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:24:56,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 20:24:56,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:24:56,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:24:56,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:24:56,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:24:56,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:24:56,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:24:56,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:24:56,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:24:56,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:24:56,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:24:56,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:24:56,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:24:56,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:24:56,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:24:56,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:24:56,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:24:56,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:24:56,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:24:56,781 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:24:56,781 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:24:56,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:24:56,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:24:56,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:24:56,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:24:56,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:24:56,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:24:56,783 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:24:56,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:24:56,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:24:56,786 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_df49536a-1b54-44cc-a68e-c7980c059879/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be07080670d55b62a9775acd64fddabe08b2aaa [2020-11-29 20:24:57,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:24:57,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:24:57,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:24:57,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:24:57,186 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:24:57,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2020-11-29 20:24:57,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/data/4096109ac/83770cee689e4e12b3e693122d50d469/FLAGd7042230f [2020-11-29 20:24:57,839 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:24:57,841 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2020-11-29 20:24:57,853 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/data/4096109ac/83770cee689e4e12b3e693122d50d469/FLAGd7042230f [2020-11-29 20:24:58,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/data/4096109ac/83770cee689e4e12b3e693122d50d469 [2020-11-29 20:24:58,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:24:58,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:24:58,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:58,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:24:58,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:24:58,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c3f9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58, skipping insertion in model container [2020-11-29 20:24:58,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:24:58,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:24:58,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:58,470 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:24:58,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:58,512 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:24:58,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58 WrapperNode [2020-11-29 20:24:58,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:58,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:58,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:24:58,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:24:58,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:58,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:24:58,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:24:58,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:24:58,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... [2020-11-29 20:24:58,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:24:58,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:24:58,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:24:58,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:24:58,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/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 [2020-11-29 20:24:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:24:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:24:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:24:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:24:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-29 20:24:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-29 20:24:59,271 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:24:59,271 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:24:59,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:59 BoogieIcfgContainer [2020-11-29 20:24:59,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:24:59,275 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:24:59,275 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:24:59,304 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:24:59,304 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:59" (1/1) ... [2020-11-29 20:24:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:24:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-29 20:24:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-29 20:24:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:24:59,371 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:24:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:24:59,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-29 20:24:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-29 20:24:59,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:24:59,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:24:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:59,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:24:59,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:24:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-11-29 20:24:59,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-29 20:24:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:24:59,840 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:24:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:59,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:24:59,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:25:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:25:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:25:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-11-29 20:25:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-29 20:25:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:25:00,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:25:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:00,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:25:00,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:25:08,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:25:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:25:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:25:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-11-29 20:25:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-11-29 20:25:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:25:19,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:25:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:19,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:25:19,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:25:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:25:45,167 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-29 20:26:13,422 WARN L193 SmtUtils]: Spent 10.81 s on a formula simplification that was a NOOP. DAG size: 21 [2020-11-29 20:27:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2020-11-29 20:27:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2020-11-29 20:27:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:27:00,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:00,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:27:00,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:27:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 25 states and 33 transitions. [2020-11-29 20:27:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-11-29 20:27:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:27:54,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:54,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:27:54,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:27:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 20:28:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 27 states and 42 transitions. [2020-11-29 20:28:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-11-29 20:28:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 20:28:11,533 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,665 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2020-11-29 20:28:11,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:28:11 ImpRootNode [2020-11-29 20:28:11,708 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:28:11,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:28:11,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:28:11,709 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:28:11,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:59" (3/4) ... [2020-11-29 20:28:11,712 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:28:11,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_df49536a-1b54-44cc-a68e-c7980c059879/bin/ukojak/witness.graphml [2020-11-29 20:28:11,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:28:11,819 INFO L168 Benchmark]: Toolchain (without parser) took 193645.34 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 56.1 MB in the beginning and 45.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,821 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:11,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.80 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 67.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.69 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,824 INFO L168 Benchmark]: Boogie Preprocessor took 26.96 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:11,825 INFO L168 Benchmark]: RCFGBuilder took 688.15 ms. Allocated memory is still 90.2 MB. Free memory was 65.0 MB in the beginning and 49.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,827 INFO L168 Benchmark]: CodeCheck took 192433.36 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 49.0 MB in the beginning and 47.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,828 INFO L168 Benchmark]: Witness Printer took 102.76 ms. Allocated memory is still 117.4 MB. Free memory was 47.3 MB in the beginning and 45.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:11,849 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: 192.3s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 110 SDslu, 238 SDs, 0 SdLazy, 2058 SolverSat, 888 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 113.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 746 GetRequests, 662 SyntacticMatches, 14 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 133.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 3234 SizeOfPredicates, 10 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 15/19 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L7] COND FALSE !(!cond) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [counter=0] [L28] EXPR counter++ VAL [counter=1] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=1] [L10] COND FALSE !(!(cond)) VAL [counter=1] [L29] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=1] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x VAL [counter=1] [L28] EXPR counter++ VAL [counter=2] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=2] [L10] COND FALSE !(!(cond)) VAL [counter=2] [L39] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=2] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [counter=2] [L10] COND TRUE !(cond) VAL [counter=2] [L3] __assert_fail("0", "ps5-ll.c", 3, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.80 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 67.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.69 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.96 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 688.15 ms. Allocated memory is still 90.2 MB. Free memory was 65.0 MB in the beginning and 49.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 192433.36 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 49.0 MB in the beginning and 47.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 102.76 ms. Allocated memory is still 117.4 MB. Free memory was 47.3 MB in the beginning and 45.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...