./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.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_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/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 7214208e9cb45e87a457dfabd3017460791ae1b1 ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:21:01,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:21:01,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:21:01,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:21:01,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:21:01,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:21:01,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:21:01,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:21:01,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:21:01,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:21:01,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:21:01,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:21:01,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:21:01,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:21:01,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:21:01,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:21:01,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:21:01,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:21:01,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:21:01,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:21:01,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:21:01,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:21:01,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:21:01,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:21:01,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:21:01,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:21:01,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:21:01,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:21:01,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:21:01,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:21:01,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:21:01,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:21:01,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:21:01,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:21:01,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:21:01,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:21:01,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:21:01,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:21:01,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:21:01,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:21:01,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:21:01,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:21:01,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:21:01,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:21:01,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:21:01,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:21:01,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:21:01,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:21:01,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:21:01,210 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:21:01,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:21:01,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:21:01,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:21:01,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:21:01,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:21:01,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:21:01,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:21:01,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:21:01,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:21:01,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:21:01,214 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:21:01,214 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:21:01,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:21:01,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:21:01,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:21:01,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:21:01,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:21:01,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:21:01,216 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:21:01,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:21:01,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:21:01,218 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_0c285d09-1ff8-48a4-b036-a05ae574f806/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7214208e9cb45e87a457dfabd3017460791ae1b1 [2020-12-01 16:21:01,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:21:01,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:21:01,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:21:01,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:21:01,535 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:21:01,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2020-12-01 16:21:01,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/data/6de0337b3/fae50dad14354d388384963ee0538cfb/FLAG386a99732 [2020-12-01 16:21:02,063 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:21:02,063 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2020-12-01 16:21:02,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/data/6de0337b3/fae50dad14354d388384963ee0538cfb/FLAG386a99732 [2020-12-01 16:21:02,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/data/6de0337b3/fae50dad14354d388384963ee0538cfb [2020-12-01 16:21:02,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:21:02,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:21:02,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:21:02,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:21:02,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:21:02,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e67daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02, skipping insertion in model container [2020-12-01 16:21:02,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:21:02,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:21:02,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:21:02,798 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:21:02,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:21:02,838 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:21:02,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02 WrapperNode [2020-12-01 16:21:02,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:21:02,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:21:02,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:21:02,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:21:02,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:21:02,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:21:02,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:21:02,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:21:02,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... [2020-12-01 16:21:02,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:21:02,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:21:02,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:21:02,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:21:02,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/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 16:21:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:21:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:21:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:21:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 16:21:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 16:21:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:21:03,282 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:21:03,282 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:21:03,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:03 BoogieIcfgContainer [2020-12-01 16:21:03,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:21:03,285 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:21:03,285 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:21:03,297 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:21:03,298 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:03" (1/1) ... [2020-12-01 16:21:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:21:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 16:21:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 16:21:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:21:03,368 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:03,532 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 16:21:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2020-12-01 16:21:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 16:21:03,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:21:03,655 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:21:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2020-12-01 16:21:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 16:21:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:21:03,883 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 16:21:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2020-12-01 16:21:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2020-12-01 16:21:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:21:04,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 16:21:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2020-12-01 16:21:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-12-01 16:21:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:21:04,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 16:21:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2020-12-01 16:21:04,626 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2020-12-01 16:21:04,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:21:04,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:21:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2020-12-01 16:21:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2020-12-01 16:21:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 16:21:04,892 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-01 16:21:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:05,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2020-12-01 16:21:05,102 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2020-12-01 16:21:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 16:21:05,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:05,191 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-01 16:21:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2020-12-01 16:21:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2020-12-01 16:21:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:21:05,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-01 16:21:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2020-12-01 16:21:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2020-12-01 16:21:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 16:21:05,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-12-01 16:21:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2020-12-01 16:21:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2020-12-01 16:21:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 16:21:05,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-12-01 16:21:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2020-12-01 16:21:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2020-12-01 16:21:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 16:21:06,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-12-01 16:21:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2020-12-01 16:21:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2020-12-01 16:21:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 16:21:06,623 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-12-01 16:21:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2020-12-01 16:21:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2020-12-01 16:21:07,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 16:21:07,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-12-01 16:21:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2020-12-01 16:21:07,420 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2020-12-01 16:21:07,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-01 16:21:07,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-12-01 16:21:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 58 states and 179 transitions. [2020-12-01 16:21:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2020-12-01 16:21:07,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 16:21:07,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-12-01 16:21:08,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 61 states and 198 transitions. [2020-12-01 16:21:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 198 transitions. [2020-12-01 16:21:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-01 16:21:08,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-12-01 16:21:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 64 states and 218 transitions. [2020-12-01 16:21:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 218 transitions. [2020-12-01 16:21:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-01 16:21:08,579 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-12-01 16:21:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 67 states and 239 transitions. [2020-12-01 16:21:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 239 transitions. [2020-12-01 16:21:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-01 16:21:09,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-12-01 16:21:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 70 states and 261 transitions. [2020-12-01 16:21:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 261 transitions. [2020-12-01 16:21:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-01 16:21:09,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-12-01 16:21:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 73 states and 284 transitions. [2020-12-01 16:21:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 284 transitions. [2020-12-01 16:21:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-01 16:21:09,937 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-12-01 16:21:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:10,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 76 states and 308 transitions. [2020-12-01 16:21:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 308 transitions. [2020-12-01 16:21:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-01 16:21:10,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-12-01 16:21:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 79 states and 333 transitions. [2020-12-01 16:21:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 333 transitions. [2020-12-01 16:21:10,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-12-01 16:21:10,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-12-01 16:21:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 82 states and 359 transitions. [2020-12-01 16:21:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 359 transitions. [2020-12-01 16:21:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-01 16:21:11,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2020-12-01 16:21:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 85 states and 386 transitions. [2020-12-01 16:21:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 386 transitions. [2020-12-01 16:21:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-12-01 16:21:12,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:12,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-12-01 16:21:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 88 states and 414 transitions. [2020-12-01 16:21:12,603 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 414 transitions. [2020-12-01 16:21:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-01 16:21:12,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2020-12-01 16:21:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 167 states and 1144 transitions. [2020-12-01 16:21:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 1144 transitions. [2020-12-01 16:21:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-01 16:21:54,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2020-12-01 16:22:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 89 states and 91 transitions. [2020-12-01 16:22:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2020-12-01 16:22:05,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:22:05,176 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 28 iterations. [2020-12-01 16:22:05,183 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:22:05,536 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-12-01 16:22:05,946 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-12-01 16:22:06,263 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 1 [2020-12-01 16:22:06,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:22:06 ImpRootNode [2020-12-01 16:22:06,270 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:22:06,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:22:06,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:22:06,271 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:22:06,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:03" (3/4) ... [2020-12-01 16:22:06,274 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:22:06,281 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-01 16:22:06,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 16:22:06,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:22:06,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:22:06,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:22:06,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0c285d09-1ff8-48a4-b036-a05ae574f806/bin/ukojak/witness.graphml [2020-12-01 16:22:06,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:22:06,323 INFO L168 Benchmark]: Toolchain (without parser) took 63753.12 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 67.1 MB in the beginning and 456.0 MB in the end (delta: -388.9 MB). Peak memory consumption was 440.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,324 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 48.7 MB in the beginning and 48.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:06,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.60 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 78.8 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 77.3 MB in the end (delta: 952.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:06,327 INFO L168 Benchmark]: Boogie Preprocessor took 17.04 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,328 INFO L168 Benchmark]: RCFGBuilder took 382.60 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 64.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,328 INFO L168 Benchmark]: CodeCheck took 62985.08 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 64.1 MB in the beginning and 459.0 MB in the end (delta: -394.9 MB). Peak memory consumption was 437.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,329 INFO L168 Benchmark]: Witness Printer took 51.26 ms. Allocated memory is still 931.1 MB. Free memory was 459.0 MB in the beginning and 456.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:06,332 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 61.8s, OverallIterations: 28, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 939524104 SDtfs, 872415420 SDslu, 1409286512 SDs, 0 SdLazy, -268419604 SolverSat, 805311580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50831 GetRequests, 48769 SyntacticMatches, 1622 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78774 ImplicationChecksByTransitivity, 45.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2349 NumberOfCodeBlocks, 2349 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2322 ConstructedInterpolants, 0 QuantifiedInterpolants, 709608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 10504/18954 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 48.7 MB in the beginning and 48.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.60 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 78.8 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 77.3 MB in the end (delta: 952.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.04 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 382.60 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 64.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 62985.08 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 64.1 MB in the beginning and 459.0 MB in the end (delta: -394.9 MB). Peak memory consumption was 437.0 MB. Max. memory is 16.1 GB. * Witness Printer took 51.26 ms. Allocated memory is still 931.1 MB. Free memory was 459.0 MB in the beginning and 456.0 MB in the end (delta: 3.0 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...