./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/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 020b73b2fed85832aee8e899d9fcbd19969e542e .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:16:10,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:10,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:10,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:10,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:10,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:10,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:10,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:10,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:10,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:10,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:10,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:10,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:10,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:10,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:10,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:10,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:11,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:11,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:11,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:11,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:11,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:11,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:11,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:11,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:11,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:11,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:11,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:11,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:11,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:11,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:11,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:11,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:11,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:11,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:11,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:11,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:11,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:11,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:11,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:11,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:11,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 01:16:11,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:11,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:11,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:16:11,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:16:11,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:11,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:11,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:11,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:16:11,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:11,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:16:11,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:11,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:16:11,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:16:11,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:16:11,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:16:11,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:16:11,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:11,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:16:11,077 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:16:11,078 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:16:11,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:11,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:16:11,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:16:11,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:11,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:16:11,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:16:11,080 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:16:11,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:16:11,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:16:11,080 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_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 020b73b2fed85832aee8e899d9fcbd19969e542e [2020-11-30 01:16:11,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:11,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:11,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:11,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:11,425 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:11,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2020-11-30 01:16:11,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/data/9d108260b/9c1b77d7d0074664b9cad6a211f7011a/FLAG7fb382874 [2020-11-30 01:16:12,169 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:12,170 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2020-11-30 01:16:12,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/data/9d108260b/9c1b77d7d0074664b9cad6a211f7011a/FLAG7fb382874 [2020-11-30 01:16:12,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/data/9d108260b/9c1b77d7d0074664b9cad6a211f7011a [2020-11-30 01:16:12,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:12,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:12,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:12,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:12,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:12,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:12,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dfab7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12, skipping insertion in model container [2020-11-30 01:16:12,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:12,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:12,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:12,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:12,889 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:12,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:12,934 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:12,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12 WrapperNode [2020-11-30 01:16:12,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:12,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:12,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:12,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:12,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:12,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:13,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:13,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:13,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:13,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:13,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:13,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:13,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:13,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:13,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/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 [2020-11-30 01:16:13,149 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-30 01:16:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-30 01:16:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:16:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-30 01:16:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-30 01:16:13,810 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:13,810 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 01:16:13,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13 BoogieIcfgContainer [2020-11-30 01:16:13,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:13,813 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:16:13,814 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:16:13,827 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:16:13,827 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2020-11-30 01:16:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2020-11-30 01:16:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:16:13,906 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-30 01:16:14,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 01:16:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 33 transitions. [2020-11-30 01:16:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-11-30 01:16:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 01:16:14,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:16:14,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:15,287 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-11-30 01:16:15,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:15,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 01:16:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 45 transitions. [2020-11-30 01:16:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2020-11-30 01:16:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:16:16,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:16,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-30 01:16:16,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:16,971 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 24 [2020-11-30 01:16:17,003 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 01:16:17,524 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-11-30 01:16:17,889 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-30 01:16:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 50 transitions. [2020-11-30 01:16:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2020-11-30 01:16:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:16:19,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:19,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:16:19,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-30 01:16:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2020-11-30 01:16:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2020-11-30 01:16:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:16:19,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:19,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-30 01:16:19,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:20,734 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:20,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:20,747 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:16:21,235 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 24 [2020-11-30 01:16:22,444 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-30 01:16:24,717 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-30 01:16:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 35 states and 60 transitions. [2020-11-30 01:16:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2020-11-30 01:16:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 01:16:24,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:25,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 01:16:25,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:25,411 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,442 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,458 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,459 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:16:25,461 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,464 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,465 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,466 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 4 disjuncts [2020-11-30 01:16:25,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,493 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-30 01:16:25,494 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,495 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,502 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:16:25,506 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,534 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,543 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,548 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,549 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,563 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,567 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,568 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,571 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,572 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,575 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,576 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,578 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,591 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,592 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-11-30 01:16:25,593 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,595 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,602 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,603 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,607 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-11-30 01:16:25,624 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-11-30 01:16:25,653 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,654 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-30 01:16:25,675 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,677 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,682 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:16:25,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,687 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,696 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,697 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,698 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-30 01:16:25,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,701 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,702 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,703 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,704 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,708 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,710 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-30 01:16:25,711 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,712 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,717 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,717 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,718 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,722 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,724 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-30 01:16:25,724 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:25,725 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,726 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,728 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,729 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:16:25,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,732 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,733 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,736 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:25,745 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-30 01:16:25,746 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-30 01:16:25,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:16:25,783 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-30 01:16:25,813 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-11-30 01:16:25,815 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 4, 3, 3, 3, 2, 3, 2, 1] term [2020-11-30 01:16:25,815 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-11-30 01:16:25,817 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 2, 3, 2, 1] term [2020-11-30 01:16:25,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 01:16:25,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:16:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 30 states and 38 transitions. [2020-11-30 01:16:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-11-30 01:16:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-30 01:16:27,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:27,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-30 01:16:27,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:27,614 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:27,616 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 3, 2, 1] term [2020-11-30 01:16:27,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 01:16:27,618 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 3, 3, 3, 2, 1] term [2020-11-30 01:16:27,618 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-11-30 01:16:27,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 01:16:27,626 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-11-30 01:16:27,627 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-30 01:16:27,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-11-30 01:16:27,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-30 01:16:28,318 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 15 [2020-11-30 01:16:28,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:16:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 01:16:28,890 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-11-30 01:16:29,155 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2020-11-30 01:16:30,876 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-30 01:16:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 23 states and 29 transitions. [2020-11-30 01:16:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2020-11-30 01:16:32,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:16:32,097 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-30 01:16:32,104 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-30 01:16:32,907 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 1 [2020-11-30 01:16:33,022 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-30 01:16:33,025 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-30 01:16:33,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:16:33 ImpRootNode [2020-11-30 01:16:33,026 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:16:33,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:16:33,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:16:33,027 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:16:33,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13" (3/4) ... [2020-11-30 01:16:33,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:16:33,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2020-11-30 01:16:33,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-30 01:16:33,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-30 01:16:33,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 01:16:33,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:16:33,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:16:33,098 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef6e9ee4-a7dd-4dc3-b9d0-da8717de9c6d/bin/ukojak/witness.graphml [2020-11-30 01:16:33,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:16:33,102 INFO L168 Benchmark]: Toolchain (without parser) took 20552.79 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 77.2 MB in the beginning and 111.9 MB in the end (delta: -34.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,103 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:33,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.59 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 84.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.01 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 82.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,105 INFO L168 Benchmark]: Boogie Preprocessor took 32.87 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:33,106 INFO L168 Benchmark]: RCFGBuilder took 759.21 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 58.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,106 INFO L168 Benchmark]: CodeCheck took 19212.31 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 58.7 MB in the beginning and 115.1 MB in the end (delta: -56.3 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,107 INFO L168 Benchmark]: Witness Printer took 72.47 ms. Allocated memory is still 159.4 MB. Free memory was 115.1 MB in the beginning and 111.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:33,110 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1344 SDtfs, 656 SDslu, 512 SDs, 0 SdLazy, 5980 SolverSat, 1832 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1572 GetRequests, 1445 SyntacticMatches, 49 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2351 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 31095 SizeOfPredicates, 47 NumberOfNonLiveVariables, 676 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 86/103 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: 5]: 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: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 384.59 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 84.2 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 79.01 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 82.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.87 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 759.21 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 58.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 19212.31 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 58.7 MB in the beginning and 115.1 MB in the end (delta: -56.3 MB). Peak memory consumption was 68.1 MB. Max. memory is 16.1 GB. * Witness Printer took 72.47 ms. Allocated memory is still 159.4 MB. Free memory was 115.1 MB in the beginning and 111.9 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...