./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_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/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 [2020-11-29 21:15:00,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:15:00,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:15:00,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:15:00,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:15:00,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:15:00,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:15:00,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:15:00,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:15:00,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:15:00,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:15:00,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:15:00,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:15:00,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:15:00,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:15:00,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:15:00,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:15:00,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:15:00,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:15:00,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:15:00,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:15:00,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:15:00,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:15:00,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:15:00,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:15:00,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:15:00,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:15:00,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:15:00,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:15:00,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:15:00,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:15:00,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:15:00,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:15:00,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:15:00,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:15:00,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:15:00,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:15:00,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:15:00,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:15:00,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:15:00,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:15:00,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 21:15:00,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:15:00,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:15:00,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 21:15:00,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 21:15:00,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:15:00,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:15:00,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:15:00,536 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:15:00,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:15:00,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:15:00,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:15:00,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:15:00,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:15:00,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:15:00,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:15:00,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:15:00,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:15:00,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:15:00,540 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 21:15:00,541 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 21:15:00,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:15:00,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:15:00,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 21:15:00,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:15:00,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:15:00,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:15:00,542 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 21:15:00,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:15:00,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:15:00,545 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_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3764edd0ff82cc2ff392719542cb80230c47723 [2020-11-29 21:15:00,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:15:00,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:15:00,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:15:00,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:15:00,844 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:15:00,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-11-29 21:15:00,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/data/0f06a2246/1d020d94cccf4b33b2057c5a9c7371ee/FLAG04d774573 [2020-11-29 21:15:01,526 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:15:01,527 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-11-29 21:15:01,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/data/0f06a2246/1d020d94cccf4b33b2057c5a9c7371ee/FLAG04d774573 [2020-11-29 21:15:01,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/data/0f06a2246/1d020d94cccf4b33b2057c5a9c7371ee [2020-11-29 21:15:01,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:15:01,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:15:01,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:15:01,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:15:01,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:15:01,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:15:01" (1/1) ... [2020-11-29 21:15:01,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2451a52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:01, skipping insertion in model container [2020-11-29 21:15:01,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:15:01" (1/1) ... [2020-11-29 21:15:01,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:15:01,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:15:02,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:15:02,140 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:15:02,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:15:02,209 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:15:02,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02 WrapperNode [2020-11-29 21:15:02,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:15:02,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:15:02,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:15:02,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:15:02,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:15:02,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:15:02,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:15:02,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:15:02,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:15:02,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:15:02,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:15:02,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:15:02,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:15:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/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 21:15:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:15:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:15:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:15:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 21:15:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:15:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:15:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:15:02,959 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:15:02,960 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 21:15:02,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:02 BoogieIcfgContainer [2020-11-29 21:15:02,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:15:02,963 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 21:15:02,963 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 21:15:02,978 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 21:15:02,978 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:02" (1/1) ... [2020-11-29 21:15:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:15:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-29 21:15:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-29 21:15:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 21:15:03,027 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:03,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:15:03,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:03,302 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 21:15:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-29 21:15:03,348 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-29 21:15:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:15:03,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:03,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:15:03,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:03,473 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 21:15:03,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-29 21:15:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-29 21:15:03,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:15:03,556 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:03,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 21:15:03,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:03,692 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 [2020-11-29 21:15:03,693 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:03,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:03,711 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:15:03,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 21:15:03,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:15:03,807 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 21:15:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-29 21:15:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-29 21:15:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 21:15:04,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:04,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 21:15:04,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 21:15:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-29 21:15:05,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-29 21:15:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:15:05,471 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:05,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 21:15:05,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 21:15:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2020-11-29 21:15:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-11-29 21:15:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:15:06,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:06,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-29 21:15:06,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:06,397 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 [2020-11-29 21:15:06,403 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,407 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:06,408 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2020-11-29 21:15:06,467 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 [2020-11-29 21:15:06,467 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,475 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:06,475 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,475 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-11-29 21:15:06,558 INFO L350 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2020-11-29 21:15:06,558 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 [2020-11-29 21:15:06,559 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:06,568 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,568 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:31 [2020-11-29 21:15:06,750 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:15:06,769 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-29 21:15:06,769 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 [2020-11-29 21:15:06,771 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,784 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:06,785 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,785 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:33 [2020-11-29 21:15:06,908 INFO L350 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2020-11-29 21:15:06,909 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 [2020-11-29 21:15:06,910 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 21:15:06,927 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 21:15:06,930 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. [2020-11-29 21:15:06,930 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:59 [2020-11-29 21:15:07,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:15:07,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:15:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:15:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2020-11-29 21:15:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2020-11-29 21:15:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:15:13,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:13,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:15:13,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 21:15:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 56 transitions. [2020-11-29 21:15:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2020-11-29 21:15:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:15:28,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:15:28,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:15:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:15:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-29 21:15:33,928 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-11-29 21:15:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:15:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 56 transitions. [2020-11-29 21:15:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2020-11-29 21:15:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:15:35,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:15:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:36,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:15:36,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:15:36,860 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2020-11-29 21:15:36,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 09:15:36 ImpRootNode [2020-11-29 21:15:36,907 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 21:15:36,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:15:36,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:15:36,908 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:15:36,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:15:02" (3/4) ... [2020-11-29 21:15:36,910 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:15:37,027 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7a8b1d9a-6208-410c-9d2b-2d6cd9409c9f/bin/ukojak/witness.graphml [2020-11-29 21:15:37,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:15:37,029 INFO L168 Benchmark]: Toolchain (without parser) took 35137.85 ms. Allocated memory was 86.0 MB in the beginning and 232.8 MB in the end (delta: 146.8 MB). Free memory was 54.9 MB in the beginning and 148.2 MB in the end (delta: -93.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,030 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:15:37,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.36 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 54.6 MB in the beginning and 86.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.27 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 84.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,047 INFO L168 Benchmark]: Boogie Preprocessor took 49.72 ms. Allocated memory is still 109.1 MB. Free memory was 84.8 MB in the beginning and 83.9 MB in the end (delta: 878.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:15:37,048 INFO L168 Benchmark]: RCFGBuilder took 639.61 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 57.5 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,049 INFO L168 Benchmark]: CodeCheck took 33944.00 ms. Allocated memory was 109.1 MB in the beginning and 232.8 MB in the end (delta: 123.7 MB). Free memory was 57.5 MB in the beginning and 151.3 MB in the end (delta: -93.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,050 INFO L168 Benchmark]: Witness Printer took 120.60 ms. Allocated memory is still 232.8 MB. Free memory was 151.3 MB in the beginning and 148.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:15:37,055 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: 33.8s, 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, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 769 SyntacticMatches, 17 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16216 ImplicationChecksByTransitivity, 30.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s 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