./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/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 bdc5f20645b6035e443a85580281230285a361ed ........................................................................................................................................................................................................................................................................ 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 16:13:53,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:13:53,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:13:53,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:13:53,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:13:53,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:13:53,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:13:53,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:13:53,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:13:53,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:13:53,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:13:53,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:13:53,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:13:53,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:13:53,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:13:53,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:13:53,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:13:53,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:13:53,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:13:53,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:13:53,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:13:53,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:13:53,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:13:53,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:13:53,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:13:53,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:13:53,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:13:53,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:13:53,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:13:53,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:13:53,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:13:53,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:13:53,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:13:53,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:13:53,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:13:53,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:13:53,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:13:53,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:13:53,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:13:53,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:13:53,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:13:53,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:13:53,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:13:53,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:13:53,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:13:53,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:13:53,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:13:53,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:13:53,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:13:53,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:13:53,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:13:53,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:13:53,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:13:53,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:13:53,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:13:53,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:13:53,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:13:53,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:13:53,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:13:53,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:13:53,836 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:13:53,836 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:13:53,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:13:53,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:13:53,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:13:53,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:13:53,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:13:53,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:13:53,838 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:13:53,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:13:53,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:13:53,841 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_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdc5f20645b6035e443a85580281230285a361ed [2020-12-01 16:13:54,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:13:54,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:13:54,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:13:54,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:13:54,195 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:13:54,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2020-12-01 16:13:54,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/data/9c1895400/8bbcd6cb035845508d9b8a34ec29a93d/FLAG2b2e8e035 [2020-12-01 16:13:54,879 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:13:54,880 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2020-12-01 16:13:54,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/data/9c1895400/8bbcd6cb035845508d9b8a34ec29a93d/FLAG2b2e8e035 [2020-12-01 16:13:55,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/data/9c1895400/8bbcd6cb035845508d9b8a34ec29a93d [2020-12-01 16:13:55,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:13:55,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:13:55,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:13:55,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:13:55,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:13:55,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7cdbc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55, skipping insertion in model container [2020-12-01 16:13:55,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:13:55,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:13:55,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:13:55,667 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:13:55,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:13:55,733 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:13:55,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55 WrapperNode [2020-12-01 16:13:55,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:13:55,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:13:55,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:13:55,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:13:55,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:13:55,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:13:55,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:13:55,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:13:55,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... [2020-12-01 16:13:55,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:13:55,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:13:55,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:13:55,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:13:55,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:13:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/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 16:13:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 16:13:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 16:13:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:13:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:13:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:13:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:13:56,306 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:13:56,307 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 16:13:56,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:56 BoogieIcfgContainer [2020-12-01 16:13:56,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:13:56,310 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:13:56,311 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:13:56,322 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:13:56,323 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:56" (1/1) ... [2020-12-01 16:13:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:13:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2020-12-01 16:13:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2020-12-01 16:13:56,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:13:56,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:56,720 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 16:13:56,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-01 16:13:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-01 16:13:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:13:56,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:57,037 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 16:13:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2020-12-01 16:13:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-12-01 16:13:57,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:13:57,339 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:57,540 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 16:13:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-12-01 16:13:58,019 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-01 16:13:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:13:58,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:13:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2020-12-01 16:13:58,629 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2020-12-01 16:13:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:13:58,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:58,692 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 16:13:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:13:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-12-01 16:13:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-01 16:13:58,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:13:58,920 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:13:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:13:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:14:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-12-01 16:14:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-01 16:14:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:14:00,249 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:14:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:14:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:14:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2020-12-01 16:14:02,739 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2020-12-01 16:14:02,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:14:02,740 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 16:14:02,747 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:14:02,949 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:14:02,960 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 16:14:02,962 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 16:14:02,963 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:14:02,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:14:02 ImpRootNode [2020-12-01 16:14:02,964 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:14:02,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:14:02,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:14:02,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:14:02,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:13:56" (3/4) ... [2020-12-01 16:14:02,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:14:02,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-12-01 16:14:02,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 16:14:02,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:14:02,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:14:02,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:14:03,074 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0f3ac0f-1aac-4c99-a8b9-0daf179ab905/bin/ukojak/witness.graphml [2020-12-01 16:14:03,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:14:03,076 INFO L168 Benchmark]: Toolchain (without parser) took 7820.88 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 60.8 MB in the beginning and 115.4 MB in the end (delta: -54.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,077 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:14:03,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.80 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 67.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 90.2 MB. Free memory was 67.9 MB in the beginning and 66.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,079 INFO L168 Benchmark]: Boogie Preprocessor took 47.28 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:14:03,080 INFO L168 Benchmark]: RCFGBuilder took 475.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 50.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,081 INFO L168 Benchmark]: CodeCheck took 6653.33 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 50.7 MB in the beginning and 118.5 MB in the end (delta: -67.8 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,082 INFO L168 Benchmark]: Witness Printer took 109.44 ms. Allocated memory is still 159.4 MB. Free memory was 118.5 MB in the beginning and 115.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:03,086 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, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 730 SDslu, 192 SDs, 0 SdLazy, 3738 SolverSat, 1020 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 742 GetRequests, 628 SyntacticMatches, 14 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3128 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 10/19 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: 4]: 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: 14]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 < main__i + 1 && main__i < main__nlen - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 < main__i + 1 && main__i < main__nlen - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 470.80 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 67.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 90.2 MB. Free memory was 67.9 MB in the beginning and 66.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.28 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 475.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 50.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 6653.33 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 50.7 MB in the beginning and 118.5 MB in the end (delta: -67.8 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. * Witness Printer took 109.44 ms. Allocated memory is still 159.4 MB. Free memory was 118.5 MB in the beginning and 115.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...