./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3.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_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/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 3aac8fad8f983ba6915be6b6d24065853819d497 ........................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:37:05,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:05,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:06,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:06,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:06,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:06,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:06,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:06,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:06,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:06,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:06,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:06,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:06,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:06,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:06,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:06,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:06,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:06,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:06,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:06,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:06,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:06,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:06,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:06,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:06,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:06,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:06,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:06,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:06,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:06,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:06,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:06,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:06,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:06,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:06,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:06,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:06,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:06,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:06,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:06,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:06,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:06,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:06,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:06,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:06,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:06,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:06,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:06,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:06,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:06,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:06,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:06,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:06,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:06,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:06,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:06,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:06,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:06,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:06,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:06,175 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:06,175 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:06,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:06,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:06,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:06,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:06,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:06,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:06,177 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:06,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:06,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:06,179 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_f774cda4-b474-4cc1-a48f-b2f89116642a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aac8fad8f983ba6915be6b6d24065853819d497 [2020-11-28 04:37:06,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:06,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:06,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:06,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:06,547 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:06,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/../../sv-benchmarks/c/loops/while_infinite_loop_3.c [2020-11-28 04:37:06,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/data/0788d9d32/9d3880b0eeb94388b32d0579de508083/FLAG6e3567d5f [2020-11-28 04:37:07,050 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:07,051 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/sv-benchmarks/c/loops/while_infinite_loop_3.c [2020-11-28 04:37:07,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/data/0788d9d32/9d3880b0eeb94388b32d0579de508083/FLAG6e3567d5f [2020-11-28 04:37:07,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/data/0788d9d32/9d3880b0eeb94388b32d0579de508083 [2020-11-28 04:37:07,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:07,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:07,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:07,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:07,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:07,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c412bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07, skipping insertion in model container [2020-11-28 04:37:07,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:07,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:07,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:07,652 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:07,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:07,678 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:07,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07 WrapperNode [2020-11-28 04:37:07,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:07,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:07,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:07,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:07,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:07,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:07,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:07,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:07,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... [2020-11-28 04:37:07,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:07,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:07,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:07,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:07,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/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 04:37:07,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:37:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:37:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:08,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:08,142 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:37:08,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:08 BoogieIcfgContainer [2020-11-28 04:37:08,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:08,145 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:08,145 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:08,156 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:08,156 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:08" (1/1) ... [2020-11-28 04:37:08,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:37:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:37:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:37:08,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:08,471 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 04:37:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 7 transitions. [2020-11-28 04:37:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-28 04:37:08,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:37:08,538 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:37:08,544 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:37:08,567 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:08,570 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:08,570 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:37:08,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:08 ImpRootNode [2020-11-28 04:37:08,576 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:08,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:08,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:08,577 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:08,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:08" (3/4) ... [2020-11-28 04:37:08,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:37:08,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:37:08,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:37:08,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:37:08,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:37:08,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:37:08,648 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f774cda4-b474-4cc1-a48f-b2f89116642a/bin/ukojak/witness.graphml [2020-11-28 04:37:08,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:08,650 INFO L168 Benchmark]: Toolchain (without parser) took 1186.89 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 41.6 MB in the beginning and 62.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,650 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 57.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:08,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.55 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 41.4 MB in the beginning and 83.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.75 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,652 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 81.5 MB in the end (delta: 820.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:08,653 INFO L168 Benchmark]: RCFGBuilder took 412.18 ms. Allocated memory is still 111.1 MB. Free memory was 81.5 MB in the beginning and 84.0 MB in the end (delta: -2.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,653 INFO L168 Benchmark]: CodeCheck took 431.12 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 64.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,654 INFO L168 Benchmark]: Witness Printer took 71.08 ms. Allocated memory is still 111.1 MB. Free memory was 64.8 MB in the beginning and 62.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:08,657 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 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 11 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 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, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 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 - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 57.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.55 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 41.4 MB in the beginning and 83.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.75 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 81.5 MB in the end (delta: 820.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 412.18 ms. Allocated memory is still 111.1 MB. Free memory was 81.5 MB in the beginning and 84.0 MB in the end (delta: -2.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 431.12 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 64.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 71.08 ms. Allocated memory is still 111.1 MB. Free memory was 64.8 MB in the beginning and 62.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...