./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-loops/diamond_2-1.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_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector-loops/diamond_2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/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 fdc3c556d58a22f0b5db1f711cca081eb180f3b4 ............................................................................................................................................................................................................................................. 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 04:39:52,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:52,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:52,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:52,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:52,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:52,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:52,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:52,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:52,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:52,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:52,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:52,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:52,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:52,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:52,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:52,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:52,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:52,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:52,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:52,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:52,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:52,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:52,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:52,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:52,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:52,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:52,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:52,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:52,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:52,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:52,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:52,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:52,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:52,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:52,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:52,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:52,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:52,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:52,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:52,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:52,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:39:52,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:52,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:52,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:52,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:52,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:52,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:52,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:52,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:39:52,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:52,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:39:52,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:52,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:52,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:52,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:52,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:39:52,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:52,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:52,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:52,243 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:52,243 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:52,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:52,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:52,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:52,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:52,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:52,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:52,244 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:52,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:52,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:52,247 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_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc3c556d58a22f0b5db1f711cca081eb180f3b4 [2020-11-28 04:39:52,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:52,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:52,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:52,561 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:52,563 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:52,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/../../sv-benchmarks/c/bitvector-loops/diamond_2-1.c [2020-11-28 04:39:52,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/data/5f1d0b386/c76fb8e2908842748ad16d4c746e37e1/FLAG09a534ed0 [2020-11-28 04:39:53,119 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:53,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/sv-benchmarks/c/bitvector-loops/diamond_2-1.c [2020-11-28 04:39:53,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/data/5f1d0b386/c76fb8e2908842748ad16d4c746e37e1/FLAG09a534ed0 [2020-11-28 04:39:53,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/data/5f1d0b386/c76fb8e2908842748ad16d4c746e37e1 [2020-11-28 04:39:53,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:53,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:53,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:53,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:53,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:53,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac44858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53, skipping insertion in model container [2020-11-28 04:39:53,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:53,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:53,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:53,753 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:53,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:53,789 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:53,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53 WrapperNode [2020-11-28 04:39:53,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:53,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:53,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:53,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:53,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:53,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:53,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:53,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:53,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... [2020-11-28 04:39:53,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:53,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:53,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:53,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:53,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/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 04:39:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:39:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:39:54,618 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:54,618 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:39:54,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:54 BoogieIcfgContainer [2020-11-28 04:39:54,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:54,653 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:54,654 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:54,666 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:54,666 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:54" (1/1) ... [2020-11-28 04:39:54,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:54,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:54,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2020-11-28 04:39:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2020-11-28 04:39:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:54,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:54,935 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 04:39:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:39:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:39:54,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:54,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:39:55,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:39:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:39:55,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:39:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:39:55,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:39:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:39:55,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:39:55,202 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:39:55,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:55 ImpRootNode [2020-11-28 04:39:55,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:55,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:55,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:55,225 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:55,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:54" (3/4) ... [2020-11-28 04:39:55,227 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:39:55,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b60ba13-f5d2-424a-a3b4-c5416e8b6379/bin/ukojak/witness.graphml [2020-11-28 04:39:55,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:55,274 INFO L168 Benchmark]: Toolchain (without parser) took 1793.81 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 59.4 MB in the beginning and 66.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,275 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.9 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:55,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.73 ms. Allocated memory is still 90.2 MB. Free memory was 59.3 MB in the beginning and 67.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,277 INFO L168 Benchmark]: Boogie Preprocessor took 42.24 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 64.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,278 INFO L168 Benchmark]: RCFGBuilder took 777.32 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 64.9 MB in the beginning and 90.1 MB in the end (delta: -25.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,279 INFO L168 Benchmark]: CodeCheck took 570.22 ms. Allocated memory is still 111.1 MB. Free memory was 90.1 MB in the beginning and 68.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,280 INFO L168 Benchmark]: Witness Printer took 48.16 ms. Allocated memory is still 111.1 MB. Free memory was 68.5 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:55,283 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, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned int y = __VERIFIER_nondet_uint(); [L17] COND TRUE x < 99 [L18] COND FALSE !(y % 2 == 0) [L19] x += 2 [L21] COND FALSE !(y % 2 == 0) [L22] x -= 2 [L24] COND FALSE !(y % 2 == 0) [L25] x += 2 [L27] COND FALSE !(y % 2 == 0) [L28] x -= 2 [L30] COND FALSE !(y % 2 == 0) [L31] x += 2 [L33] COND FALSE !(y % 2 == 0) [L34] x -= 4 [L36] COND FALSE !(y % 2 == 0) [L37] x += 4 [L39] COND FALSE !(y % 2 == 0) [L40] x += 2 [L42] COND FALSE !(y % 2 == 0) [L43] x -= 4 [L45] COND FALSE !(y % 2 == 0) [L46] x -= 4 [L17] COND FALSE !(x < 99) [L7] COND TRUE !(cond) [L3] __assert_fail("0", "diamond_2-1.c", 3, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.9 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.73 ms. Allocated memory is still 90.2 MB. Free memory was 59.3 MB in the beginning and 67.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.24 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 64.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 777.32 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 64.9 MB in the beginning and 90.1 MB in the end (delta: -25.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. * CodeCheck took 570.22 ms. Allocated memory is still 111.1 MB. Free memory was 90.1 MB in the beginning and 68.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 48.16 ms. Allocated memory is still 111.1 MB. Free memory was 68.5 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...