./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s2iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s2iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/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 a22ecd7dbca86ce676366b458aa720e60c3fd1ca ......................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 18:03:56,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:03:56,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:03:56,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:03:56,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:03:56,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:03:56,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:03:56,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:03:56,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:03:56,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:03:56,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:03:56,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:03:56,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:03:56,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:03:56,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:03:56,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:03:56,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:03:56,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:03:56,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:03:56,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:03:56,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:03:56,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:03:56,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:03:56,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:03:56,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:03:56,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:03:56,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:03:56,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:03:56,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:03:56,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:03:56,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:03:56,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:03:56,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:03:56,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:03:56,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:03:56,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:03:56,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:03:56,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:03:56,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:03:56,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:03:56,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:03:56,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:03:56,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:03:56,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:03:56,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:03:56,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:03:56,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:03:56,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:03:56,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:03:56,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:03:56,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:03:56,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:03:56,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:03:56,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:03:56,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:03:56,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:03:56,578 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:03:56,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:03:56,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:03:56,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:03:56,579 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:03:56,579 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:03:56,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:03:56,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:03:56,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:03:56,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:03:56,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:03:56,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:03:56,581 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:03:56,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:03:56,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:03:56,581 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_9e7dc2a4-579c-4421-9326-a60b6ef2f523/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22ecd7dbca86ce676366b458aa720e60c3fd1ca [2020-12-01 18:03:56,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:03:56,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:03:56,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:03:56,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:03:56,864 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:03:56,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/../../sv-benchmarks/c/array-fpi/s2iff.c [2020-12-01 18:03:56,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/data/e279f32da/09c661fb92944188bb2f961ea080b2a1/FLAGc79a7693a [2020-12-01 18:03:57,441 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:03:57,442 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/sv-benchmarks/c/array-fpi/s2iff.c [2020-12-01 18:03:57,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/data/e279f32da/09c661fb92944188bb2f961ea080b2a1/FLAGc79a7693a [2020-12-01 18:03:57,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/data/e279f32da/09c661fb92944188bb2f961ea080b2a1 [2020-12-01 18:03:57,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:03:57,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:03:57,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:03:57,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:03:57,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:03:57,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:03:57" (1/1) ... [2020-12-01 18:03:57,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31671673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:57, skipping insertion in model container [2020-12-01 18:03:57,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:03:57" (1/1) ... [2020-12-01 18:03:57,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:03:57,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:03:58,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:03:58,025 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:03:58,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:03:58,058 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:03:58,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58 WrapperNode [2020-12-01 18:03:58,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:03:58,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:03:58,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:03:58,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:03:58,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:03:58,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:03:58,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:03:58,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:03:58,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:03:58,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:03:58,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:03:58,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:03:58,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:03:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/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 [2020-12-01 18:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:03:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:03:58,613 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:03:58,614 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 18:03:58,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:03:58 BoogieIcfgContainer [2020-12-01 18:03:58,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:03:58,617 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:03:58,617 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:03:58,628 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:03:58,628 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:03:58" (1/1) ... [2020-12-01 18:03:58,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:03:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-12-01 18:03:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-12-01 18:03:58,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:03:58,675 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-12-01 18:03:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-12-01 18:03:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:03:58,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:03:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-12-01 18:03:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-01 18:03:59,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:03:59,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:59,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 18:03:59,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:03:59,384 INFO L382 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 [2020-12-01 18:03:59,403 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,414 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 18:03:59,439 INFO L382 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 [2020-12-01 18:03:59,440 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 18:03:59,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,452 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-12-01 18:03:59,486 INFO L382 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 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-01 18:03:59,488 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 18:03:59,502 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,502 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-01 18:03:59,585 INFO L382 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 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-01 18:03:59,587 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 18:03:59,597 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 18:03:59,600 INFO L547 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. [2020-12-01 18:03:59,601 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:25 [2020-12-01 18:03:59,653 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:03:59,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:03:59,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 18:03:59,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:03:59,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 18:03:59,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 18:03:59,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 18:03:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:04:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:04:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2020-12-01 18:04:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2020-12-01 18:04:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:04:00,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:04:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:04:00,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 18:04:00,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:04:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:04:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:04:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 20 states and 40 transitions. [2020-12-01 18:04:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 40 transitions. [2020-12-01 18:04:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:04:01,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:04:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:04:01,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 18:04:01,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:04:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:04:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:04:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2020-12-01 18:04:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2020-12-01 18:04:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:04:02,171 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:04:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:02,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:02,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:02,556 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-12-01 18:04:02,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:04:02 ImpRootNode [2020-12-01 18:04:02,585 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:04:02,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:04:02,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:04:02,586 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:04:02,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:03:58" (3/4) ... [2020-12-01 18:04:02,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:04:02,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e7dc2a4-579c-4421-9326-a60b6ef2f523/bin/ukojak/witness.graphml [2020-12-01 18:04:02,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:04:02,647 INFO L168 Benchmark]: Toolchain (without parser) took 4838.38 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 69.2 MB in the beginning and 86.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,648 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 56.1 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:04:02,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.61 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.8 MB in the beginning and 95.5 MB in the end (delta: -26.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.88 ms. Allocated memory is still 119.5 MB. Free memory was 95.5 MB in the beginning and 93.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,649 INFO L168 Benchmark]: Boogie Preprocessor took 26.50 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,650 INFO L168 Benchmark]: RCFGBuilder took 491.26 ms. Allocated memory is still 119.5 MB. Free memory was 92.9 MB in the beginning and 68.7 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,651 INFO L168 Benchmark]: CodeCheck took 3968.69 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 68.7 MB in the beginning and 88.9 MB in the end (delta: -20.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,651 INFO L168 Benchmark]: Witness Printer took 59.90 ms. Allocated memory is still 144.7 MB. Free memory was 88.9 MB in the beginning and 86.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:02,655 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: 3.9s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 766 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 320 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 1314 SizeOfPredicates, 18 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 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] sum[0] = 1 [L32] i=0 VAL [N=2] [L32] COND TRUE i