./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/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 dc63a805379d435830d30b53773a27b22aa93e78 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:26:30,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:26:30,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:26:30,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:26:30,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:26:30,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:26:30,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:26:30,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:26:30,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:26:30,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:26:30,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:26:30,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:26:30,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:26:30,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:26:30,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:26:30,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:26:30,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:26:30,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:26:30,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:26:30,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:26:30,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:26:30,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:26:30,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:26:30,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:26:30,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:26:30,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:26:30,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:26:30,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:26:30,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:26:30,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:26:30,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:26:30,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:26:30,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:26:30,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:26:30,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:26:30,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:26:30,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:26:30,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:26:30,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:26:30,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:26:30,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:26:30,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:26:30,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:26:30,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:26:30,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:26:30,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:26:30,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:26:30,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:26:30,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:26:30,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:26:30,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:26:30,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:26:30,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:26:30,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:26:30,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:26:30,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:26:30,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:26:30,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:26:30,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:26:30,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:26:30,685 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:26:30,685 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:26:30,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:26:30,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:26:30,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:26:30,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:26:30,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:26:30,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:26:30,688 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:26:30,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:26:30,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:26:30,689 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_cd411bfe-d22a-4998-98ca-8d06b55a11fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc63a805379d435830d30b53773a27b22aa93e78 [2020-12-01 18:26:31,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:26:31,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:26:31,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:26:31,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:26:31,129 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:26:31,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-12-01 18:26:31,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/data/7f8325fa0/91ae64048bb74e36a27bbd7209643422/FLAG1e0e8e4aa [2020-12-01 18:26:31,855 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:26:31,856 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-12-01 18:26:31,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/data/7f8325fa0/91ae64048bb74e36a27bbd7209643422/FLAG1e0e8e4aa [2020-12-01 18:26:32,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/data/7f8325fa0/91ae64048bb74e36a27bbd7209643422 [2020-12-01 18:26:32,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:26:32,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:26:32,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:26:32,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:26:32,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:26:32,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a4f3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32, skipping insertion in model container [2020-12-01 18:26:32,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:26:32,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:26:32,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:26:32,615 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:26:32,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:26:32,683 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:26:32,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32 WrapperNode [2020-12-01 18:26:32,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:26:32,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:26:32,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:26:32,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:26:32,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:26:32,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:26:32,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:26:32,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:26:32,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... [2020-12-01 18:26:32,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:26:32,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:26:32,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:26:32,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:26:32,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:26:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:26:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:26:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:26:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:26:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:26:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:26:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:26:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 18:26:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 18:26:32,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:26:33,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:26:33,937 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-01 18:26:33,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:26:33 BoogieIcfgContainer [2020-12-01 18:26:33,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:26:33,941 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:26:33,941 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:26:33,959 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:26:33,960 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:26:33" (1/1) ... [2020-12-01 18:26:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:26:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:34,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2020-12-01 18:26:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-12-01 18:26:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:26:34,047 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:26:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2020-12-01 18:26:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2020-12-01 18:26:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:26:34,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:26:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2020-12-01 18:26:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-12-01 18:26:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:26:34,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 18:26:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 37 transitions. [2020-12-01 18:26:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-12-01 18:26:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:26:34,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 18:26:35,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 39 transitions. [2020-12-01 18:26:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2020-12-01 18:26:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:26:35,132 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 18:26:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 28 states and 41 transitions. [2020-12-01 18:26:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2020-12-01 18:26:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:26:35,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:26:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 43 transitions. [2020-12-01 18:26:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-12-01 18:26:35,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 18:26:35,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:26:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 33 states and 54 transitions. [2020-12-01 18:26:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2020-12-01 18:26:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:26:36,289 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:36,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:26:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 34 states and 56 transitions. [2020-12-01 18:26:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2020-12-01 18:26:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:26:36,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:26:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 38 states and 67 transitions. [2020-12-01 18:26:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2020-12-01 18:26:37,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 18:26:37,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 18:26:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 39 states and 68 transitions. [2020-12-01 18:26:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2020-12-01 18:26:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 18:26:37,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:26:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:26:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 18:26:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:26:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2020-12-01 18:26:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2020-12-01 18:26:37,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:26:37,700 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-12-01 18:26:37,713 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:26:37,873 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 18:26:37,891 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:26:37,892 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:26:37,893 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 18:26:37,897 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:26:37,898 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 18:26:37,899 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 18:26:37,899 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 18:26:37,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:26:37 ImpRootNode [2020-12-01 18:26:37,901 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:26:37,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:26:37,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:26:37,905 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:26:37,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:26:33" (3/4) ... [2020-12-01 18:26:37,921 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:26:37,938 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 18:26:37,950 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2020-12-01 18:26:37,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-01 18:26:37,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:26:37,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:26:37,997 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: n == 0 && \result == 0 [2020-12-01 18:26:38,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cd411bfe-d22a-4998-98ca-8d06b55a11fc/bin/ukojak/witness.graphml [2020-12-01 18:26:38,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:26:38,092 INFO L168 Benchmark]: Toolchain (without parser) took 5864.22 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 48.4 MB in the beginning and 52.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,095 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 81.8 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:26:38,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.53 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.2 MB in the beginning and 75.3 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,099 INFO L168 Benchmark]: Boogie Preprocessor took 45.47 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,099 INFO L168 Benchmark]: RCFGBuilder took 1145.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 59.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,102 INFO L168 Benchmark]: CodeCheck took 3962.04 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 56.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,102 INFO L168 Benchmark]: Witness Printer took 184.94 ms. Allocated memory is still 119.5 MB. Free memory was 55.8 MB in the beginning and 52.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:26:38,105 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, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16864 SDtfs, 206 SDslu, 64 SDs, 0 SdLazy, 29180 SolverSat, 16614 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1562 GetRequests, 1495 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 6099 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 55/58 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: 12]: 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: 61]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (n == 0 && i == 0) && size == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: n == 0 && \result == 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: n == 0 && x == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 81.8 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 30.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 457.53 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.2 MB in the beginning and 75.3 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.71 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.47 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1145.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 59.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * CodeCheck took 3962.04 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 56.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 184.94 ms. Allocated memory is still 119.5 MB. Free memory was 55.8 MB in the beginning and 52.7 MB in the end (delta: 3.1 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...