./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs2f.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_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/brs2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/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 cd8964853d628053ec141f0834bb54931510ac76 .............................................................................................................................................................................................................................................................................................................. 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 23:28:39,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:28:39,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:28:39,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:28:39,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:28:39,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:28:39,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:28:39,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:28:39,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:28:39,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:28:39,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:28:39,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:28:39,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:28:39,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:28:39,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:28:39,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:28:39,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:28:39,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:28:39,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:28:39,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:28:39,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:28:39,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:28:39,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:28:39,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:28:39,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:28:39,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:28:39,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:28:39,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:28:39,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:28:39,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:28:39,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:28:39,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:28:39,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:28:39,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:28:39,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:28:39,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:28:39,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:28:39,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:28:39,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:28:39,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:28:39,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:28:39,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 23:28:39,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:28:39,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:28:39,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:28:39,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:28:39,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:28:39,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:28:39,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:28:39,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:28:39,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:28:39,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:28:39,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:28:39,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:28:39,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:28:39,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:28:39,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:28:39,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:28:39,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:28:39,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:28:39,747 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:28:39,747 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:28:39,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:28:39,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:28:39,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:28:39,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:28:39,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:28:39,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:28:39,749 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:28:39,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:28:39,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:28:39,750 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_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8964853d628053ec141f0834bb54931510ac76 [2020-11-29 23:28:40,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:28:40,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:28:40,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:28:40,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:28:40,104 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:28:40,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/../../sv-benchmarks/c/array-fpi/brs2f.c [2020-11-29 23:28:40,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/data/33d17d4fc/670bfc4a325f47f591187d6a1427d8c6/FLAGb358d45b9 [2020-11-29 23:28:40,765 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:28:40,766 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/sv-benchmarks/c/array-fpi/brs2f.c [2020-11-29 23:28:40,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/data/33d17d4fc/670bfc4a325f47f591187d6a1427d8c6/FLAGb358d45b9 [2020-11-29 23:28:41,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/data/33d17d4fc/670bfc4a325f47f591187d6a1427d8c6 [2020-11-29 23:28:41,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:28:41,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:28:41,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:28:41,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:28:41,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:28:41,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e795106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41, skipping insertion in model container [2020-11-29 23:28:41,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:28:41,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:28:41,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:28:41,396 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:28:41,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:28:41,442 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:28:41,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41 WrapperNode [2020-11-29 23:28:41,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:28:41,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:28:41,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:28:41,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:28:41,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:28:41,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:28:41,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:28:41,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:28:41,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... [2020-11-29 23:28:41,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:28:41,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:28:41,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:28:41,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:28:41,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:28:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/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 23:28:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:28:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:28:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:28:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:28:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:28:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:28:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:28:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:28:42,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:28:42,175 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 23:28:42,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:28:42 BoogieIcfgContainer [2020-11-29 23:28:42,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:28:42,178 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:28:42,178 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:28:42,189 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:28:42,189 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:28:42" (1/1) ... [2020-11-29 23:28:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-29 23:28:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-29 23:28:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 23:28:42,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:42,463 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 23:28:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-11-29 23:28:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-29 23:28:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:28:42,520 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:28:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-29 23:28:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-29 23:28:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 23:28:42,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:28:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2020-11-29 23:28:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2020-11-29 23:28:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:28:43,198 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:43,427 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 23:28:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 17 states and 31 transitions. [2020-11-29 23:28:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 31 transitions. [2020-11-29 23:28:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 23:28:44,086 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:28:46,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2020-11-29 23:28:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2020-11-29 23:28:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:28:46,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:28:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:28:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 23 states and 46 transitions. [2020-11-29 23:28:47,198 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 46 transitions. [2020-11-29 23:28:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:28:47,199 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:28:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:28:47,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:28:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:28:47,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:28:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:28:47,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:28:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:28:47,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:28:47,553 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-11-29 23:28:47,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:28:47 ImpRootNode [2020-11-29 23:28:47,611 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:28:47,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:28:47,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:28:47,612 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:28:47,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:28:42" (3/4) ... [2020-11-29 23:28:47,614 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:28:47,725 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4747d2a9-efd1-4750-a4cb-f19e8a0026ee/bin/ukojak/witness.graphml [2020-11-29 23:28:47,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:28:47,728 INFO L168 Benchmark]: Toolchain (without parser) took 6588.53 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 60.4 MB in the beginning and 92.5 MB in the end (delta: -32.1 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,729 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 69.2 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:28:47,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.78 ms. Allocated memory is still 92.3 MB. Free memory was 60.2 MB in the beginning and 69.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,732 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 66.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,733 INFO L168 Benchmark]: RCFGBuilder took 670.21 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 42.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,734 INFO L168 Benchmark]: CodeCheck took 5433.34 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 42.2 MB in the beginning and 95.6 MB in the end (delta: -53.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:28:47,735 INFO L168 Benchmark]: Witness Printer took 114.53 ms. Allocated memory is still 127.9 MB. Free memory was 95.6 MB in the beginning and 92.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:47,741 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 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 112 SDslu, 0 SDs, 0 SdLazy, 1282 SolverSat, 578 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 426 SyntacticMatches, 6 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3082 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/22 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [N=3] [L31] COND TRUE i