./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --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_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/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 b3a725921be8310e882457f7f33c9ff7dbee0bc2 ............................................................................................................................................................................................................................................................................................................................ 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 04:41:13,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:41:13,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:41:13,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:41:13,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:41:13,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:41:13,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:41:13,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:41:13,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:41:13,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:41:13,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:41:13,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:41:13,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:41:13,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:41:13,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:41:13,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:41:13,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:41:13,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:41:13,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:41:13,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:41:13,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:41:13,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:41:13,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:41:13,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:41:13,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:41:13,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:41:13,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:41:13,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:41:13,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:41:13,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:41:13,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:41:13,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:41:13,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:41:13,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:41:13,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:41:13,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:41:13,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:41:13,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:41:13,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:41:13,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:41:13,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:41:13,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:41:13,731 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:41:13,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:41:13,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:41:13,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:41:13,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:41:13,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:41:13,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:41:13,736 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:41:13,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:41:13,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:41:13,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:41:13,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:41:13,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:41:13,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:41:13,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:41:13,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:41:13,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:41:13,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:41:13,741 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:41:13,742 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:41:13,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:41:13,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:41:13,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:13,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:41:13,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:41:13,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:41:13,744 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:41:13,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:41:13,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:41:13,745 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_fd463314-a263-4875-bcae-9996f3ff3fe5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a725921be8310e882457f7f33c9ff7dbee0bc2 [2020-11-28 04:41:14,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:41:14,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:41:14,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:41:14,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:41:14,057 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:41:14,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/../../sv-benchmarks/c/loop-invgen/nested6.i [2020-11-28 04:41:14,137 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/data/c2f537af9/83a7f5f9eb5f4d52886241d7ad215687/FLAGd6147a9ef [2020-11-28 04:41:14,547 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:41:14,548 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/sv-benchmarks/c/loop-invgen/nested6.i [2020-11-28 04:41:14,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/data/c2f537af9/83a7f5f9eb5f4d52886241d7ad215687/FLAGd6147a9ef [2020-11-28 04:41:14,953 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/data/c2f537af9/83a7f5f9eb5f4d52886241d7ad215687 [2020-11-28 04:41:14,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:41:14,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:41:14,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:14,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:41:14,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:41:14,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:14" (1/1) ... [2020-11-28 04:41:14,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fc0ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:14, skipping insertion in model container [2020-11-28 04:41:14,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:14" (1/1) ... [2020-11-28 04:41:14,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:41:14,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:41:15,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:15,179 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:41:15,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:15,208 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:41:15,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15 WrapperNode [2020-11-28 04:41:15,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:15,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:15,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:41:15,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:41:15,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:15,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:41:15,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:41:15,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:41:15,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:41:15,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:41:15,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:41:15,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:41:15,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/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 04:41:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:41:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:41:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:41:15,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:41:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:41:15,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:41:15,799 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:41:15,799 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:41:15,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:15 BoogieIcfgContainer [2020-11-28 04:41:15,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:41:15,802 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:41:15,802 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:41:15,816 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:41:15,816 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:15" (1/1) ... [2020-11-28 04:41:15,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:41:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2020-11-28 04:41:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2020-11-28 04:41:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:41:15,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:16,179 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 04:41:16,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 40 transitions. [2020-11-28 04:41:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2020-11-28 04:41:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:41:16,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:16,412 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 04:41:16,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 32 states and 49 transitions. [2020-11-28 04:41:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-11-28 04:41:16,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:41:16,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 60 transitions. [2020-11-28 04:41:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-11-28 04:41:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:41:17,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 61 transitions. [2020-11-28 04:41:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-11-28 04:41:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:41:17,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 41 states and 70 transitions. [2020-11-28 04:41:17,939 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 70 transitions. [2020-11-28 04:41:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:41:17,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 69 transitions. [2020-11-28 04:41:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2020-11-28 04:41:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:41:18,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:18,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 58 transitions. [2020-11-28 04:41:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2020-11-28 04:41:18,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:41:18,445 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:19,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 42 states and 70 transitions. [2020-11-28 04:41:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 70 transitions. [2020-11-28 04:41:19,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:41:19,824 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:41:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 45 states and 78 transitions. [2020-11-28 04:41:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2020-11-28 04:41:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:41:20,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:41:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 47 states and 82 transitions. [2020-11-28 04:41:21,059 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 82 transitions. [2020-11-28 04:41:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 04:41:21,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:41:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 83 transitions. [2020-11-28 04:41:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-11-28 04:41:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 04:41:21,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:41:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 83 transitions. [2020-11-28 04:41:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 83 transitions. [2020-11-28 04:41:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 04:41:21,579 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 04:41:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:22,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 42 states and 65 transitions. [2020-11-28 04:41:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2020-11-28 04:41:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 04:41:22,301 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-28 04:41:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 28 states and 43 transitions. [2020-11-28 04:41:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2020-11-28 04:41:22,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:41:22,647 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2020-11-28 04:41:22,653 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:41:22,873 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:22,876 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:22,876 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:22,876 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:22,876 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:22,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:41:22 ImpRootNode [2020-11-28 04:41:22,877 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:41:22,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:41:22,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:41:22,878 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:41:22,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:15" (3/4) ... [2020-11-28 04:41:22,882 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:41:22,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:41:22,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 04:41:22,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:41:22,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:41:22,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:41:22,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fd463314-a263-4875-bcae-9996f3ff3fe5/bin/ukojak/witness.graphml [2020-11-28 04:41:22,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:41:22,950 INFO L168 Benchmark]: Toolchain (without parser) took 7992.21 ms. Allocated memory was 86.0 MB in the beginning and 182.5 MB in the end (delta: 96.5 MB). Free memory was 53.6 MB in the beginning and 55.6 MB in the end (delta: -2.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,951 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 59.0 MB in the beginning and 59.0 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:22,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 83.2 MB in the end (delta: -29.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.74 ms. Allocated memory is still 104.9 MB. Free memory was 83.2 MB in the beginning and 81.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,952 INFO L168 Benchmark]: Boogie Preprocessor took 38.97 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:22,953 INFO L168 Benchmark]: RCFGBuilder took 488.24 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 63.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,954 INFO L168 Benchmark]: CodeCheck took 7075.13 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 63.9 MB in the beginning and 58.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,954 INFO L168 Benchmark]: Witness Printer took 70.47 ms. Allocated memory is still 182.5 MB. Free memory was 58.8 MB in the beginning and 55.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:22,958 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, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 15, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164352 SDtfs, 134684 SDslu, 78528 SDs, 0 SdLazy, 606062 SolverSat, 148150 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2738 GetRequests, 2561 SyntacticMatches, 63 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4619 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 16160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 110/132 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 59.0 MB in the beginning and 59.0 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 83.2 MB in the end (delta: -29.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.74 ms. Allocated memory is still 104.9 MB. Free memory was 83.2 MB in the beginning and 81.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.97 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 488.24 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 63.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 7075.13 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 63.9 MB in the beginning and 58.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. * Witness Printer took 70.47 ms. Allocated memory is still 182.5 MB. Free memory was 58.8 MB in the beginning and 55.6 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...