./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.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_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/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 e2ed99b30ac1df5d31daa869d277589d2838cb93 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:04:48,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:04:48,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:04:48,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:04:48,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:04:48,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:04:48,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:04:48,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:04:48,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:04:48,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:04:48,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:04:48,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:04:48,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:04:48,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:04:48,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:04:48,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:04:48,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:04:48,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:04:48,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:04:48,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:04:48,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:04:48,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:04:48,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:04:48,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:04:48,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:04:48,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:04:48,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:04:48,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:04:48,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:04:48,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:04:48,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:04:48,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:04:48,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:04:48,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:04:48,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:04:48,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:04:48,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:04:48,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:04:48,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:04:48,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:04:48,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:04:48,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 20:04:48,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:04:48,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:04:48,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:04:48,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:04:48,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:04:48,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:04:48,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:04:48,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:04:48,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:04:48,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:04:48,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:04:48,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:04:48,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:04:48,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:04:48,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:04:48,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:04:48,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:04:48,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:04:48,913 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:04:48,913 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:04:48,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:04:48,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:04:48,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:04:48,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:04:48,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:04:48,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:04:48,915 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:04:48,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:04:48,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:04:48,917 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_6743ec27-6713-484a-bfca-d7437dc82efa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2020-11-29 20:04:49,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:04:49,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:04:49,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:04:49,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:04:49,221 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:04:49,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2020-11-29 20:04:49,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/data/a6d9c1043/d55e93483ea440c99d8c3f850ba37357/FLAGf156a5e74 [2020-11-29 20:04:49,858 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:04:49,858 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2020-11-29 20:04:49,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/data/a6d9c1043/d55e93483ea440c99d8c3f850ba37357/FLAGf156a5e74 [2020-11-29 20:04:50,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/data/a6d9c1043/d55e93483ea440c99d8c3f850ba37357 [2020-11-29 20:04:50,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:04:50,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:04:50,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:04:50,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:04:50,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:04:50,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bc07a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50, skipping insertion in model container [2020-11-29 20:04:50,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:04:50,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:04:50,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:04:50,434 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:04:50,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:04:50,468 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:04:50,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50 WrapperNode [2020-11-29 20:04:50,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:04:50,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:04:50,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:04:50,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:04:50,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:04:50,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:04:50,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:04:50,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:04:50,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... [2020-11-29 20:04:50,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:04:50,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:04:50,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:04:50,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:04:50,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:04:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/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 [2020-11-29 20:04:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:04:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:04:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:04:50,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:04:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-29 20:04:50,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-29 20:04:51,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:04:51,025 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:04:51,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:04:51 BoogieIcfgContainer [2020-11-29 20:04:51,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:04:51,028 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:04:51,029 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:04:51,037 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:04:51,037 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:04:51" (1/1) ... [2020-11-29 20:04:51,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:04:51,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2020-11-29 20:04:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2020-11-29 20:04:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:04:51,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:04:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-29 20:04:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-29 20:04:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:04:51,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:04:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2020-11-29 20:04:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2020-11-29 20:04:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:04:51,524 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:51,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:04:51,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:04:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2020-11-29 20:04:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2020-11-29 20:04:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:04:51,991 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:52,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:04:52,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 20:04:52,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2020-11-29 20:04:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2020-11-29 20:04:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 20:04:52,229 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:52,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:04:52,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 20:04:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 29 states and 52 transitions. [2020-11-29 20:04:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2020-11-29 20:04:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 20:04:52,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:52,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:52,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 20:04:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:52,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 31 states and 55 transitions. [2020-11-29 20:04:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 55 transitions. [2020-11-29 20:04:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 20:04:52,681 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:52,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:52,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 20:04:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 60 transitions. [2020-11-29 20:04:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-11-29 20:04:53,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:04:53,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:53,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 20:04:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 20:04:53,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 66 transitions. [2020-11-29 20:04:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2020-11-29 20:04:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 20:04:53,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:53,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:53,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:53,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:04:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:04:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 69 transitions. [2020-11-29 20:04:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 69 transitions. [2020-11-29 20:04:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 20:04:54,382 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:54,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:54,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:54,528 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-29 20:04:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 41 states and 74 transitions. [2020-11-29 20:04:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2020-11-29 20:04:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-29 20:04:54,918 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:54,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:54,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 20:04:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 44 states and 82 transitions. [2020-11-29 20:04:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2020-11-29 20:04:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-29 20:04:55,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:56,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 20:04:56,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 20:04:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 85 transitions. [2020-11-29 20:04:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 85 transitions. [2020-11-29 20:04:56,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-29 20:04:56,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:56,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:04:56,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 20:04:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 88 transitions. [2020-11-29 20:04:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2020-11-29 20:04:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-29 20:04:56,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:56,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 20:04:56,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 20:04:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 51 states and 94 transitions. [2020-11-29 20:04:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 94 transitions. [2020-11-29 20:04:57,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-29 20:04:57,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:57,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 20:04:57,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:58,152 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-11-29 20:04:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:04:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 53 states and 99 transitions. [2020-11-29 20:04:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2020-11-29 20:04:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:04:58,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:04:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:58,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 20:04:58,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-29 20:05:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 56 states and 107 transitions. [2020-11-29 20:05:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2020-11-29 20:05:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 20:05:00,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:00,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 20:05:00,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-29 20:05:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 58 states and 110 transitions. [2020-11-29 20:05:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2020-11-29 20:05:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-29 20:05:01,082 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:01,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:05:01,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-11-29 20:05:01,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 113 transitions. [2020-11-29 20:05:01,528 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 113 transitions. [2020-11-29 20:05:01,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-29 20:05:01,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:01,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-29 20:05:01,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 20:05:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 63 states and 119 transitions. [2020-11-29 20:05:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 119 transitions. [2020-11-29 20:05:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-29 20:05:03,673 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:03,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 20:05:03,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-29 20:05:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 65 states and 124 transitions. [2020-11-29 20:05:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 124 transitions. [2020-11-29 20:05:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 20:05:06,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:06,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 20:05:06,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 30 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-11-29 20:05:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 68 states and 132 transitions. [2020-11-29 20:05:09,399 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 132 transitions. [2020-11-29 20:05:09,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-29 20:05:09,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:09,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 23 conjunts are in the unsatisfiable core [2020-11-29 20:05:09,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-11-29 20:05:11,279 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 20:05:12,031 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-11-29 20:05:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 70 states and 135 transitions. [2020-11-29 20:05:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 135 transitions. [2020-11-29 20:05:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-29 20:05:12,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:05:12,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2020-11-29 20:05:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:13,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 72 states and 138 transitions. [2020-11-29 20:05:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2020-11-29 20:05:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-29 20:05:13,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:05:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:13,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 20:05:13,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 99 proven. 15 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-11-29 20:05:16,305 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-11-29 20:05:18,741 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-11-29 20:05:19,581 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-11-29 20:05:22,037 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2020-11-29 20:05:22,879 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2020-11-29 20:05:25,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:05:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 33 states and 52 transitions. [2020-11-29 20:05:25,124 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-11-29 20:05:25,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:05:25,125 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2020-11-29 20:05:25,141 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 20:05:25,313 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 1 [2020-11-29 20:05:25,616 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 1 [2020-11-29 20:05:25,807 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 1 [2020-11-29 20:05:26,104 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 1 [2020-11-29 20:05:26,439 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 1 [2020-11-29 20:05:26,684 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 1 [2020-11-29 20:05:26,714 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 20:05:26,719 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 20:05:26,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:05:26 ImpRootNode [2020-11-29 20:05:26,719 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:05:26,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:05:26,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:05:26,720 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:05:26,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:04:51" (3/4) ... [2020-11-29 20:05:26,732 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:05:26,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-29 20:05:26,741 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 20:05:26,741 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 20:05:26,741 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 20:05:26,741 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:05:26,796 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6743ec27-6713-484a-bfca-d7437dc82efa/bin/ukojak/witness.graphml [2020-11-29 20:05:26,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:05:26,803 INFO L168 Benchmark]: Toolchain (without parser) took 36566.45 ms. Allocated memory was 86.0 MB in the beginning and 197.1 MB in the end (delta: 111.1 MB). Free memory was 59.5 MB in the beginning and 128.8 MB in the end (delta: -69.3 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,804 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 86.0 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:05:26,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.17 ms. Allocated memory is still 86.0 MB. Free memory was 59.4 MB in the beginning and 49.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 48.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,805 INFO L168 Benchmark]: Boogie Preprocessor took 19.95 ms. Allocated memory is still 86.0 MB. Free memory was 48.3 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,806 INFO L168 Benchmark]: RCFGBuilder took 500.07 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 90.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,806 INFO L168 Benchmark]: CodeCheck took 35691.01 ms. Allocated memory was 113.2 MB in the beginning and 197.1 MB in the end (delta: 83.9 MB). Free memory was 90.1 MB in the beginning and 132.0 MB in the end (delta: -41.9 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,808 INFO L168 Benchmark]: Witness Printer took 82.12 ms. Allocated memory is still 197.1 MB. Free memory was 132.0 MB in the beginning and 128.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:26,811 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, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.0s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229900288 SDtfs, 29161416 SDslu, 38382976 SDs, 0 SdLazy, 286150328 SolverSat, 90320216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7765 GetRequests, 7381 SyntacticMatches, 258 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8948 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 188277 SizeOfPredicates, 54 NumberOfNonLiveVariables, 2941 ConjunctsInSsa, 311 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 2938/3190 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 86.0 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.17 ms. Allocated memory is still 86.0 MB. Free memory was 59.4 MB in the beginning and 49.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 48.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.95 ms. Allocated memory is still 86.0 MB. Free memory was 48.3 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 500.07 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 90.6 MB in the end (delta: -43.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * CodeCheck took 35691.01 ms. Allocated memory was 113.2 MB in the beginning and 197.1 MB in the end (delta: 83.9 MB). Free memory was 90.1 MB in the beginning and 132.0 MB in the end (delta: -41.9 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * Witness Printer took 82.12 ms. Allocated memory is still 197.1 MB. Free memory was 132.0 MB in the beginning and 128.8 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...