./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss3f.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_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ss3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/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 248b2d90a91115122eed8c2bc3ad2e8879fe9067 ........................................................................................................................................................................................................................................................................................................... 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 04:38:35,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:35,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:35,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:35,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:35,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:35,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:35,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:35,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:35,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:35,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:35,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:35,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:35,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:35,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:35,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:35,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:35,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:35,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:35,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:35,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:35,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:35,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:35,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:35,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:35,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:35,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:35,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:35,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:35,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:35,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:35,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:35,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:35,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:35,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:35,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:35,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:35,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:35,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:35,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:35,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:35,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:38:35,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:35,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:35,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:35,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:35,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:35,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:35,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:35,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:35,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:35,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:35,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:35,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:35,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:35,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:35,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:35,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:35,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:35,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:35,600 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:35,600 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:35,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:35,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:35,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:35,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:35,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:35,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:35,603 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:35,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:35,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:35,604 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_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 248b2d90a91115122eed8c2bc3ad2e8879fe9067 [2020-11-28 04:38:35,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:35,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:35,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:35,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:35,858 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:35,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/../../sv-benchmarks/c/array-fpi/ss3f.c [2020-11-28 04:38:35,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/data/b37527d83/68aa4eaad98e4726bdcc037a8dec4c30/FLAGeb16a5e74 [2020-11-28 04:38:36,378 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:36,379 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/sv-benchmarks/c/array-fpi/ss3f.c [2020-11-28 04:38:36,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/data/b37527d83/68aa4eaad98e4726bdcc037a8dec4c30/FLAGeb16a5e74 [2020-11-28 04:38:36,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/data/b37527d83/68aa4eaad98e4726bdcc037a8dec4c30 [2020-11-28 04:38:36,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:36,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:36,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:36,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:36,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:36,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:36" (1/1) ... [2020-11-28 04:38:36,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cb86c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36, skipping insertion in model container [2020-11-28 04:38:36,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:36" (1/1) ... [2020-11-28 04:38:36,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:36,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:37,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:37,093 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:37,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:37,130 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:37,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37 WrapperNode [2020-11-28 04:38:37,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:37,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:37,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:37,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:37,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:37,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:37,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:37,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:37,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:37,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:37,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:37,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:37,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/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 04:38:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:38:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:38:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:38:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:38:37,951 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:37,951 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 04:38:37,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:37 BoogieIcfgContainer [2020-11-28 04:38:37,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:37,957 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:37,958 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:37,967 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:37,968 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:37" (1/1) ... [2020-11-28 04:38:37,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2020-11-28 04:38:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2020-11-28 04:38:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:38:38,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,262 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 04:38:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-11-28 04:38:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-11-28 04:38:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:38:38,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,392 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 04:38:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-28 04:38:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-28 04:38:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:38:38,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:38:38,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:38,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:38:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-28 04:38:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-28 04:38:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:38:38,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:38:38,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:38:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-28 04:38:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-28 04:38:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:38:38,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:38:38,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:38:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:38:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-28 04:38:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-28 04:38:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:38:39,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:39,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:39,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:39,229 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-11-28 04:38:39,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:39 ImpRootNode [2020-11-28 04:38:39,289 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:39,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:39,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:39,290 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:39,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:37" (3/4) ... [2020-11-28 04:38:39,292 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:38:39,355 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eda7cd4b-fff1-44ef-9faf-ae5b6f84f52d/bin/ukojak/witness.graphml [2020-11-28 04:38:39,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:39,361 INFO L168 Benchmark]: Toolchain (without parser) took 2574.44 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 62.2 MB in the beginning and 66.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,361 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 67.1 MB. Free memory was 29.1 MB in the beginning and 29.1 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:39,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.98 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 70.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.00 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,363 INFO L168 Benchmark]: Boogie Preprocessor took 58.35 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 68.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,364 INFO L168 Benchmark]: RCFGBuilder took 722.62 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 40.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,364 INFO L168 Benchmark]: CodeCheck took 1331.46 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 40.3 MB in the beginning and 68.7 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:39,365 INFO L168 Benchmark]: Witness Printer took 66.04 ms. Allocated memory is still 119.5 MB. Free memory was 68.7 MB in the beginning and 66.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:39,368 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, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 98 SDslu, 0 SDs, 0 SdLazy, 448 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 457 SyntacticMatches, 19 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1250 SizeOfPredicates, 4 NumberOfNonLiveVariables, 324 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i