./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn3f.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_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/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 c3764edd0ff82cc2ff392719542cb80230c47723 ............................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-28 04:35:50,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:35:50,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:35:50,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:35:50,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:35:50,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:35:50,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:35:50,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:35:50,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:35:50,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:35:50,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:35:50,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:35:50,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:35:50,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:35:50,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:35:50,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:35:50,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:35:50,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:35:50,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:35:50,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:35:50,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:35:50,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:35:50,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:35:50,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:35:50,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:35:50,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:35:50,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:35:50,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:35:50,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:35:50,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:35:50,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:35:50,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:35:50,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:35:50,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:35:50,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:35:50,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:35:50,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:35:50,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:35:50,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:35:50,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:35:50,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:35:50,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:35:50,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:35:50,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:35:50,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:35:50,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:35:50,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:35:50,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:35:50,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:35:50,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:35:50,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:35:50,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:35:50,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:35:50,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:35:50,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:35:50,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:35:50,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:35:50,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:35:50,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:35:50,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:35:50,998 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:35:50,998 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:35:50,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:35:50,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:35:50,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:35:50,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:35:50,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:35:50,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:35:51,000 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:35:51,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:35:51,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:35:51,002 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_fb28710d-bd74-43e2-a9ad-42e7cabf4243/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3764edd0ff82cc2ff392719542cb80230c47723 [2020-11-28 04:35:51,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:35:51,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:35:51,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:35:51,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:35:51,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:35:51,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-11-28 04:35:51,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/data/b24999801/b583747c01b64f219b5b28b620cd0ba2/FLAG7853c589b [2020-11-28 04:35:51,793 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:35:51,794 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-11-28 04:35:51,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/data/b24999801/b583747c01b64f219b5b28b620cd0ba2/FLAG7853c589b [2020-11-28 04:35:52,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/data/b24999801/b583747c01b64f219b5b28b620cd0ba2 [2020-11-28 04:35:52,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:35:52,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:35:52,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:35:52,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:35:52,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:35:52,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff92e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52, skipping insertion in model container [2020-11-28 04:35:52,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:35:52,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:35:52,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:35:52,408 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:35:52,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:35:52,441 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:35:52,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52 WrapperNode [2020-11-28 04:35:52,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:35:52,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:35:52,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:35:52,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:35:52,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:35:52,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:35:52,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:35:52,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:35:52,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... [2020-11-28 04:35:52,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:35:52,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:35:52,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:35:52,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:35:52,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:35:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/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 04:35:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:35:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:35:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:35:53,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:35:53,208 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 04:35:53,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:35:53 BoogieIcfgContainer [2020-11-28 04:35:53,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:35:53,211 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:35:53,211 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:35:53,220 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:35:53,221 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:35:53" (1/1) ... [2020-11-28 04:35:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:35:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-28 04:35:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-28 04:35:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:35:53,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:53,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:35:53,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:53,506 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 04:35:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-28 04:35:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-28 04:35:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:35:53,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:53,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:35:53,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:35:53,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-28 04:35:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-28 04:35:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:35:53,705 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:53,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 04:35:53,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:53,803 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-28 04:35:53,803 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:53,840 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:53,840 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:35:53,840 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-28 04:35:53,891 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:35:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:35:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-28 04:35:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-28 04:35:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:35:54,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:54,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 04:35:54,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:35:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-28 04:35:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-28 04:35:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:35:55,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:55,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 04:35:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:35:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:35:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2020-11-28 04:35:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-11-28 04:35:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:35:56,140 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:35:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:35:56,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-28 04:35:56,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:35:56,227 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 04:35:56,231 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:56,237 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,237 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2020-11-28 04:35:56,296 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-28 04:35:56,296 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,303 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:56,304 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,304 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-11-28 04:35:56,391 INFO L350 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2020-11-28 04:35:56,392 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22 [2020-11-28 04:35:56,393 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:56,401 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,401 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:31 [2020-11-28 04:35:56,548 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 04:35:56,562 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-28 04:35:56,563 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 32 [2020-11-28 04:35:56,564 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:56,576 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,576 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:33 [2020-11-28 04:35:56,689 INFO L350 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2020-11-28 04:35:56,690 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 44 [2020-11-28 04:35:56,691 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 04:35:56,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 04:35:56,714 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-28 04:35:56,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:59 [2020-11-28 04:35:57,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:35:57,104 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 04:35:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2020-11-28 04:36:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2020-11-28 04:36:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:36:01,962 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:02,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 04:36:02,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:36:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:36:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 56 transitions. [2020-11-28 04:36:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2020-11-28 04:36:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:36:11,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:11,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 04:36:11,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:36:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 04:36:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 56 transitions. [2020-11-28 04:36:14,646 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2020-11-28 04:36:14,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:36:14,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:14,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:15,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:15,107 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2020-11-28 04:36:15,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:36:15 ImpRootNode [2020-11-28 04:36:15,168 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:36:15,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:36:15,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:36:15,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:36:15,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:35:53" (3/4) ... [2020-11-28 04:36:15,179 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:36:15,280 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fb28710d-bd74-43e2-a9ad-42e7cabf4243/bin/ukojak/witness.graphml [2020-11-28 04:36:15,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:36:15,282 INFO L168 Benchmark]: Toolchain (without parser) took 23085.37 ms. Allocated memory was 94.4 MB in the beginning and 237.0 MB in the end (delta: 142.6 MB). Free memory was 64.3 MB in the beginning and 209.7 MB in the end (delta: -145.4 MB). Peak memory consumption was 132.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,284 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:15,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.19 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 71.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.16 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,287 INFO L168 Benchmark]: Boogie Preprocessor took 25.38 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 68.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:15,293 INFO L168 Benchmark]: RCFGBuilder took 705.60 ms. Allocated memory is still 94.4 MB. Free memory was 68.8 MB in the beginning and 42.8 MB in the end (delta: 26.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,295 INFO L168 Benchmark]: CodeCheck took 21957.47 ms. Allocated memory was 94.4 MB in the beginning and 237.0 MB in the end (delta: 142.6 MB). Free memory was 42.8 MB in the beginning and 78.4 MB in the end (delta: -35.6 MB). Peak memory consumption was 107.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,295 INFO L168 Benchmark]: Witness Printer took 104.25 ms. Allocated memory is still 237.0 MB. Free memory was 78.4 MB in the beginning and 209.7 MB in the end (delta: -131.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:15,299 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.8s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1408 SDtfs, 528 SDslu, 0 SDs, 0 SdLazy, 6090 SolverSat, 2838 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 769 SyntacticMatches, 17 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16216 ImplicationChecksByTransitivity, 19.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 90 ConstructedInterpolants, 5 QuantifiedInterpolants, 8520 SizeOfPredicates, 26 NumberOfNonLiveVariables, 786 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 28/50 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=3] [L31] COND TRUE i