./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.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_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/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 0451dd3f8b23a82c5bdbe01b3aa3776bb079c0a7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:26:28,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:26:28,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:26:28,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:26:28,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:26:28,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:26:28,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:26:28,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:26:28,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:26:28,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:26:28,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:26:28,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:26:28,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:26:28,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:26:28,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:26:28,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:26:28,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:26:28,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:26:28,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:26:28,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:26:28,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:26:28,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:26:28,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:26:28,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:26:28,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:26:28,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:26:28,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:26:28,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:26:28,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:26:28,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:26:28,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:26:28,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:26:28,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:26:28,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:26:28,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:26:28,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:26:28,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:26:28,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:26:28,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:26:28,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:26:28,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:26:28,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:26:28,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:26:28,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:26:28,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:26:28,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:26:28,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:26:28,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:26:28,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:26:28,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:26:28,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:26:28,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:26:28,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:26:28,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:26:28,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:26:28,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:26:28,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:26:28,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:26:28,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:26:28,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:26:28,560 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:26:28,561 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:26:28,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:26:28,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:26:28,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:26:28,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:26:28,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:26:28,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:26:28,562 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:26:28,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:26:28,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:26:28,563 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_37667046-5506-4c3d-ad33-998b4c7437e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0451dd3f8b23a82c5bdbe01b3aa3776bb079c0a7 [2020-12-01 16:26:28,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:26:28,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:26:28,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:26:28,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:26:28,878 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:26:28,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c [2020-12-01 16:26:28,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/data/e815bee47/78282f89f6c94a1cb8bffc816b79aae8/FLAGa16e468fe [2020-12-01 16:26:29,488 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:26:29,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c [2020-12-01 16:26:29,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/data/e815bee47/78282f89f6c94a1cb8bffc816b79aae8/FLAGa16e468fe [2020-12-01 16:26:29,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/data/e815bee47/78282f89f6c94a1cb8bffc816b79aae8 [2020-12-01 16:26:29,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:26:29,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:26:29,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:26:29,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:26:29,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:26:29,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:26:29" (1/1) ... [2020-12-01 16:26:29,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c41fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:29, skipping insertion in model container [2020-12-01 16:26:29,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:26:29" (1/1) ... [2020-12-01 16:26:29,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:26:29,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:26:30,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:26:30,091 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:26:30,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:26:30,121 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:26:30,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30 WrapperNode [2020-12-01 16:26:30,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:26:30,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:26:30,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:26:30,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:26:30,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:26:30,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:26:30,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:26:30,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:26:30,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:26:30,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:26:30,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:26:30,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:26:30,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/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 16:26:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:26:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:26:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:26:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:26:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:26:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:26:30,584 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:26:30,584 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 16:26:30,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:26:30 BoogieIcfgContainer [2020-12-01 16:26:30,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:26:30,587 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:26:30,588 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:26:30,611 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:26:30,612 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:26:30" (1/1) ... [2020-12-01 16:26:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:26:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-12-01 16:26:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-12-01 16:26:30,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:26:30,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:30,897 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 16:26:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 38 transitions. [2020-12-01 16:26:31,007 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2020-12-01 16:26:31,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:26:31,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:26:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 42 transitions. [2020-12-01 16:26:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-12-01 16:26:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:26:31,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:31,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 16:26:31,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:26:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2020-12-01 16:26:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-12-01 16:26:31,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:26:31,872 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:31,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 16:26:31,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 16:26:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 55 transitions. [2020-12-01 16:26:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 55 transitions. [2020-12-01 16:26:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:26:32,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:32,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 16:26:32,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 16:26:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:32,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 60 transitions. [2020-12-01 16:26:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-12-01 16:26:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:26:32,787 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:32,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-01 16:26:32,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 16:26:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 42 states and 70 transitions. [2020-12-01 16:26:33,864 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 70 transitions. [2020-12-01 16:26:33,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:26:33,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:33,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 16:26:33,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 16:26:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 45 states and 79 transitions. [2020-12-01 16:26:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2020-12-01 16:26:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:26:34,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:34,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 16:26:34,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:26:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 87 transitions. [2020-12-01 16:26:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 87 transitions. [2020-12-01 16:26:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:26:34,813 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:34,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:26:34,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-12-01 16:26:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 50 states and 88 transitions. [2020-12-01 16:26:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2020-12-01 16:26:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-01 16:26:35,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:35,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:26:35,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 16:26:35,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 50 states and 87 transitions. [2020-12-01 16:26:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2020-12-01 16:26:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-01 16:26:35,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:35,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 16:26:35,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 16:26:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 55 states and 97 transitions. [2020-12-01 16:26:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 97 transitions. [2020-12-01 16:26:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 16:26:36,650 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:36,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 16:26:36,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-12-01 16:26:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 61 states and 112 transitions. [2020-12-01 16:26:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 112 transitions. [2020-12-01 16:26:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:26:37,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:37,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 16:26:37,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:38,079 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 26 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-01 16:26:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:38,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 63 states and 117 transitions. [2020-12-01 16:26:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 117 transitions. [2020-12-01 16:26:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:26:38,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:38,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:26:38,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-12-01 16:26:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 63 states and 116 transitions. [2020-12-01 16:26:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 116 transitions. [2020-12-01 16:26:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 16:26:38,834 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:38,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:26:38,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 28 proven. 28 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-01 16:26:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 66 states and 122 transitions. [2020-12-01 16:26:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 122 transitions. [2020-12-01 16:26:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-01 16:26:40,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:40,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:26:40,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 30 proven. 49 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 16:26:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 71 states and 132 transitions. [2020-12-01 16:26:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 132 transitions. [2020-12-01 16:26:41,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-01 16:26:41,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:41,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 16:26:41,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 30 proven. 31 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 16:26:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 71 states and 131 transitions. [2020-12-01 16:26:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 131 transitions. [2020-12-01 16:26:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 16:26:41,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:41,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-01 16:26:41,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-12-01 16:26:43,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 77 states and 146 transitions. [2020-12-01 16:26:43,285 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 146 transitions. [2020-12-01 16:26:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 16:26:43,286 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:43,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 16:26:43,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-12-01 16:26:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 79 states and 151 transitions. [2020-12-01 16:26:43,686 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 151 transitions. [2020-12-01 16:26:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 16:26:43,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:43,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:26:43,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-01 16:26:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 79 states and 150 transitions. [2020-12-01 16:26:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 150 transitions. [2020-12-01 16:26:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 16:26:44,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:44,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:26:44,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:44,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:44,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:26:44,546 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:26:44,549 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:26:44,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:26:44,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:26:44,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:26:44,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:44,583 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:26:44,587 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 16:26:44,590 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:26:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-12-01 16:26:45,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 81 states and 160 transitions. [2020-12-01 16:26:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 160 transitions. [2020-12-01 16:26:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 16:26:45,602 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:45,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-01 16:26:45,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:45,979 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:26:45,979 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:45,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-12-01 16:26:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 85 states and 173 transitions. [2020-12-01 16:26:47,162 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-12-01 16:26:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 16:26:47,164 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:47,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 16:26:47,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 16:26:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 90 states and 183 transitions. [2020-12-01 16:26:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 183 transitions. [2020-12-01 16:26:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 16:26:48,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:48,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 16:26:48,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 16:26:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 92 states and 188 transitions. [2020-12-01 16:26:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 188 transitions. [2020-12-01 16:26:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 16:26:49,289 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:49,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-01 16:26:49,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:49,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 16:26:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 94 states and 193 transitions. [2020-12-01 16:26:50,059 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 193 transitions. [2020-12-01 16:26:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 16:26:50,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:50,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-01 16:26:50,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 36 proven. 63 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-12-01 16:26:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 100 states and 210 transitions. [2020-12-01 16:26:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 210 transitions. [2020-12-01 16:26:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-01 16:26:51,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:52,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 16:26:52,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 38 proven. 67 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-12-01 16:26:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 102 states and 215 transitions. [2020-12-01 16:26:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 215 transitions. [2020-12-01 16:26:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-01 16:26:52,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:52,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:26:52,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 38 proven. 34 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2020-12-01 16:26:53,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 102 states and 214 transitions. [2020-12-01 16:26:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 214 transitions. [2020-12-01 16:26:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-01 16:26:53,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:53,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 44 conjunts are in the unsatisfiable core [2020-12-01 16:26:53,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:54,028 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:26:54,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:54,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 38 proven. 61 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-12-01 16:26:56,143 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 16:26:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 107 states and 224 transitions. [2020-12-01 16:26:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 224 transitions. [2020-12-01 16:26:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-01 16:26:56,376 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:56,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-01 16:26:56,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 40 proven. 64 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-01 16:26:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:26:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 107 states and 223 transitions. [2020-12-01 16:26:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2020-12-01 16:26:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-01 16:26:58,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:26:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:26:58,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 51 conjunts are in the unsatisfiable core [2020-12-01 16:26:58,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:26:59,190 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:26:59,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:59,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:26:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 78 proven. 76 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2020-12-01 16:27:00,476 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-01 16:27:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 111 states and 236 transitions. [2020-12-01 16:27:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 236 transitions. [2020-12-01 16:27:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 16:27:00,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:00,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 16:27:00,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2020-12-01 16:27:04,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:04,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 101 states and 206 transitions. [2020-12-01 16:27:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 206 transitions. [2020-12-01 16:27:04,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-01 16:27:04,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:04,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 16:27:04,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:04,869 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 42 proven. 80 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-12-01 16:27:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 103 states and 210 transitions. [2020-12-01 16:27:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 210 transitions. [2020-12-01 16:27:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-01 16:27:05,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:05,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 16:27:05,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 42 proven. 80 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-12-01 16:27:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 105 states and 214 transitions. [2020-12-01 16:27:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 214 transitions. [2020-12-01 16:27:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-01 16:27:06,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:06,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 45 conjunts are in the unsatisfiable core [2020-12-01 16:27:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 42 proven. 92 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-12-01 16:27:08,134 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-01 16:27:09,769 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-01 16:27:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 111 states and 230 transitions. [2020-12-01 16:27:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 230 transitions. [2020-12-01 16:27:09,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-01 16:27:09,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:09,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 16:27:09,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 44 proven. 96 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2020-12-01 16:27:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 113 states and 234 transitions. [2020-12-01 16:27:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 234 transitions. [2020-12-01 16:27:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-01 16:27:10,625 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:10,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 51 conjunts are in the unsatisfiable core [2020-12-01 16:27:10,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:11,151 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:11,151 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,475 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 1] term [2020-12-01 16:27:11,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,475 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:11,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,477 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:27:11,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,478 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:11,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,479 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:27:11,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:11,480 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-01 16:27:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 44 proven. 91 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2020-12-01 16:27:12,623 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-01 16:27:14,037 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 26 [2020-12-01 16:27:14,865 WARN L197 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-12-01 16:27:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 119 states and 251 transitions. [2020-12-01 16:27:15,667 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 251 transitions. [2020-12-01 16:27:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 16:27:15,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:15,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-01 16:27:15,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 46 proven. 97 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2020-12-01 16:27:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 121 states and 255 transitions. [2020-12-01 16:27:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 255 transitions. [2020-12-01 16:27:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 16:27:16,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:16,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-01 16:27:16,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 46 proven. 97 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2020-12-01 16:27:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 123 states and 259 transitions. [2020-12-01 16:27:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 259 transitions. [2020-12-01 16:27:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 16:27:17,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:17,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-01 16:27:17,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:18,209 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:18,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:18,411 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 46 proven. 97 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2020-12-01 16:27:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 125 states and 263 transitions. [2020-12-01 16:27:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 263 transitions. [2020-12-01 16:27:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 16:27:19,764 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:19,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 40 conjunts are in the unsatisfiable core [2020-12-01 16:27:19,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:22,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:22,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:22,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:27:22,386 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:27:22,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,396 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-01 16:27:22,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,406 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,414 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,437 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,454 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:27:22,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:27:22,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,475 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-01 16:27:22,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,485 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,514 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,521 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,532 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,541 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-01 16:27:22,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:27:22,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,556 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,561 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,575 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,585 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-01 16:27:22,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 16:27:22,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,612 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 16:27:22,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-01 16:27:22,677 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-01 16:27:22,685 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,692 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,698 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 16:27:22,706 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-01 16:27:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 143 proven. 55 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2020-12-01 16:27:29,813 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-01 16:27:31,033 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-01 16:27:31,817 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-01 16:27:32,993 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-01 16:27:34,869 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-01 16:27:36,399 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-01 16:27:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 135 states and 289 transitions. [2020-12-01 16:27:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 289 transitions. [2020-12-01 16:27:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-01 16:27:36,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:36,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-01 16:27:36,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:37,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 48 proven. 109 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2020-12-01 16:27:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 139 states and 297 transitions. [2020-12-01 16:27:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 297 transitions. [2020-12-01 16:27:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-01 16:27:41,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:41,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 54 conjunts are in the unsatisfiable core [2020-12-01 16:27:41,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:43,174 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:43,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:43,844 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-12-01 16:27:44,592 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 1] term [2020-12-01 16:27:44,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:44,593 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:44,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:44,595 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:27:44,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:44,596 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:27:44,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:44,598 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:27:44,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:27:44,599 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-01 16:27:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 48 proven. 103 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2020-12-01 16:27:48,877 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2020-12-01 16:27:49,093 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 23 [2020-12-01 16:27:51,250 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 18 [2020-12-01 16:27:52,787 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2020-12-01 16:27:53,301 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-01 16:27:54,904 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-01 16:27:55,681 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-01 16:27:56,609 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 16:27:57,980 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-01 16:27:58,945 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-01 16:27:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 154 states and 327 transitions. [2020-12-01 16:27:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 327 transitions. [2020-12-01 16:27:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-01 16:27:59,024 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:59,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 53 conjunts are in the unsatisfiable core [2020-12-01 16:27:59,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:00,599 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:00,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:01,514 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-12-01 16:28:02,403 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 1] term [2020-12-01 16:28:02,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:02,404 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:02,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:02,406 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:28:02,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:02,408 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:02,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:02,409 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:28:02,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:02,411 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-01 16:28:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 48 proven. 103 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2020-12-01 16:28:03,962 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 21 [2020-12-01 16:28:04,986 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 18 [2020-12-01 16:28:06,711 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 21 [2020-12-01 16:28:07,540 WARN L197 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-01 16:28:09,317 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-01 16:28:10,327 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 18 [2020-12-01 16:28:11,324 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-12-01 16:28:13,040 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-01 16:28:13,912 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 16 [2020-12-01 16:28:14,800 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-01 16:28:15,632 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-12-01 16:28:17,273 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-01 16:28:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 159 states and 336 transitions. [2020-12-01 16:28:17,338 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 336 transitions. [2020-12-01 16:28:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-01 16:28:17,339 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:17,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-01 16:28:17,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 50 proven. 106 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2020-12-01 16:28:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 159 states and 335 transitions. [2020-12-01 16:28:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 335 transitions. [2020-12-01 16:28:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-01 16:28:20,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:20,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-01 16:28:20,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 50 proven. 106 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2020-12-01 16:28:22,033 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-01 16:28:22,929 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 16:28:23,536 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-01 16:28:24,120 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-12-01 16:28:25,015 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-01 16:28:25,843 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-12-01 16:28:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 159 states and 334 transitions. [2020-12-01 16:28:25,885 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 334 transitions. [2020-12-01 16:28:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-01 16:28:25,886 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:25,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 65 conjunts are in the unsatisfiable core [2020-12-01 16:28:25,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:30,993 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:30,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:30,996 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:28:30,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 103 proven. 121 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2020-12-01 16:28:33,113 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2020-12-01 16:28:34,616 WARN L197 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-12-01 16:28:35,884 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-01 16:28:36,786 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 16:28:38,207 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-01 16:28:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 163 states and 342 transitions. [2020-12-01 16:28:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 342 transitions. [2020-12-01 16:28:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-01 16:28:39,661 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:39,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 59 conjunts are in the unsatisfiable core [2020-12-01 16:28:39,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:42,594 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-12-01 16:28:42,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:28:43,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:28:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 52 proven. 126 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2020-12-01 16:28:47,366 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-01 16:28:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 165 states and 346 transitions. [2020-12-01 16:28:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 346 transitions. [2020-12-01 16:28:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-01 16:28:49,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:49,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 59 conjunts are in the unsatisfiable core [2020-12-01 16:28:49,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:50,103 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-12-01 16:28:50,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:28:50,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:28:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 52 proven. 126 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2020-12-01 16:28:51,146 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-01 16:28:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 167 states and 350 transitions. [2020-12-01 16:28:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 350 transitions. [2020-12-01 16:28:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-01 16:28:52,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:52,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 70 conjunts are in the unsatisfiable core [2020-12-01 16:28:52,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:28:56,077 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:56,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:57,485 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-01 16:28:57,505 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 1] term [2020-12-01 16:28:57,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:57,507 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:28:57,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:57,509 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:28:57,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:28:57,511 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:28:57,513 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:28:57,515 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 16:28:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 113 proven. 141 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2020-12-01 16:28:58,218 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-12-01 16:28:59,644 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-12-01 16:29:03,473 WARN L197 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-12-01 16:29:05,450 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-01 16:29:06,864 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-01 16:29:08,894 WARN L197 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-01 16:29:11,215 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-01 16:29:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 171 states and 359 transitions. [2020-12-01 16:29:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 359 transitions. [2020-12-01 16:29:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-01 16:29:11,265 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:11,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 70 conjunts are in the unsatisfiable core [2020-12-01 16:29:11,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:29:13,608 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:29:13,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:14,715 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 1] term [2020-12-01 16:29:14,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:14,718 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:29:14,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:14,720 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-01 16:29:14,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:14,721 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:29:14,724 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 16:29:14,726 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 16:29:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 101 proven. 153 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2020-12-01 16:29:15,799 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-12-01 16:29:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 173 states and 362 transitions. [2020-12-01 16:29:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 362 transitions. [2020-12-01 16:29:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-01 16:29:17,540 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:17,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-01 16:29:17,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:29:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 56 proven. 147 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2020-12-01 16:29:18,695 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-01 16:29:19,563 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-01 16:29:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 175 states and 366 transitions. [2020-12-01 16:29:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 366 transitions. [2020-12-01 16:29:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-01 16:29:22,617 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:22,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-01 16:29:22,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:29:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 56 proven. 147 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2020-12-01 16:29:23,931 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2020-12-01 16:29:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 177 states and 370 transitions. [2020-12-01 16:29:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 370 transitions. [2020-12-01 16:29:25,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-01 16:29:25,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:25,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 67 conjunts are in the unsatisfiable core [2020-12-01 16:29:25,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:29:30,269 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2020-12-01 16:29:32,796 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:29:32,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:34,272 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-01 16:29:35,730 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-01 16:29:35,743 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2020-12-01 16:29:35,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:35,745 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:29:35,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:29:35,747 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:29:35,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:29:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 58 proven. 154 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2020-12-01 16:29:43,181 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2020-12-01 16:29:44,640 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 16:29:45,774 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-12-01 16:29:50,325 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 37 [2020-12-01 16:29:51,906 WARN L197 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-01 16:29:53,274 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 16:29:55,596 WARN L197 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-01 16:29:57,464 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-01 16:29:59,683 WARN L197 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-01 16:30:01,349 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-01 16:30:02,547 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-01 16:30:04,891 WARN L197 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-01 16:30:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 182 states and 381 transitions. [2020-12-01 16:30:04,998 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 381 transitions. [2020-12-01 16:30:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-01 16:30:05,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:05,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 67 conjunts are in the unsatisfiable core [2020-12-01 16:30:05,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:30:05,623 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:30:05,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:30:05,688 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2020-12-01 16:30:05,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:30:05,689 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-01 16:30:05,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 16:30:05,690 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 16:30:05,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 16:30:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 58 proven. 154 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2020-12-01 16:30:06,607 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 21 [2020-12-01 16:30:07,072 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2020-12-01 16:30:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 120 states and 190 transitions. [2020-12-01 16:30:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 190 transitions. [2020-12-01 16:30:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-01 16:30:09,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:09,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 36 conjunts are in the unsatisfiable core [2020-12-01 16:30:09,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:30:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 60 proven. 157 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2020-12-01 16:30:14,638 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-12-01 16:30:15,935 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 16:30:16,699 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-01 16:30:17,425 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-12-01 16:30:18,760 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 16:30:20,028 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-01 16:30:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 115 states and 185 transitions. [2020-12-01 16:30:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 185 transitions. [2020-12-01 16:30:20,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:30:20,081 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 57 iterations. [2020-12-01 16:30:20,090 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:30:20,553 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 16 [2020-12-01 16:30:21,384 WARN L197 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2020-12-01 16:30:22,502 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-01 16:30:23,442 WARN L197 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2020-12-01 16:30:24,546 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 219 DAG size of output: 1 [2020-12-01 16:30:25,027 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2020-12-01 16:30:25,885 WARN L197 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 1 [2020-12-01 16:30:27,109 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-01 16:30:29,737 WARN L197 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 216 DAG size of output: 101 [2020-12-01 16:30:29,838 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 1 [2020-12-01 16:30:29,839 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:30:29,844 INFO L569 CodeCheckObserver]: Invariant with dag size 58 [2020-12-01 16:30:29,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:30:29 ImpRootNode [2020-12-01 16:30:29,861 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:30:29,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:30:29,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:30:29,862 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:30:29,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:26:30" (3/4) ... [2020-12-01 16:30:29,866 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:30:29,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 16:30:29,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 16:30:29,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:30:29,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:30:29,880 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:30:29,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37667046-5506-4c3d-ad33-998b4c7437e0/bin/ukojak/witness.graphml [2020-12-01 16:30:29,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:30:29,951 INFO L168 Benchmark]: Toolchain (without parser) took 240079.92 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 72.3 MB in the beginning and 811.3 MB in the end (delta: -739.0 MB). Peak memory consumption was 89.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,951 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:29,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.62 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 77.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,953 INFO L168 Benchmark]: Boogie Preprocessor took 23.01 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:29,953 INFO L168 Benchmark]: RCFGBuilder took 404.93 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 55.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,954 INFO L168 Benchmark]: CodeCheck took 239273.80 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 55.3 MB in the beginning and 814.4 MB in the end (delta: -759.1 MB). Peak memory consumption was 567.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,954 INFO L168 Benchmark]: Witness Printer took 81.15 ms. Allocated memory is still 931.1 MB. Free memory was 814.4 MB in the beginning and 811.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:29,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 229.4s, OverallIterations: 57, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 1651073028 SDslu, -2108842000 SDs, 0 SdLazy, -141403476 SolverSat, 721733208 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43363 GetRequests, 41361 SyntacticMatches, 1374 SemanticMatches, 628 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259825 ImplicationChecksByTransitivity, 201.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.5s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 55.5s InterpolantComputationTime, 4982 NumberOfCodeBlocks, 4982 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 4926 ConstructedInterpolants, 2 QuantifiedInterpolants, 3255311 SizeOfPredicates, 244 NumberOfNonLiveVariables, 12064 ConjunctsInSsa, 2098 ConjunctsInUnsatCore, 56 InterpolantComputations, 5 PerfectInterpolantSequences, 27228/30919 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: 8]: 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: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((((!((B == 1 && p == 2) && B * 2 == d) && !((B == 1 && d == B * 8) && p == 8)) && !((B == 1 && B == d) && p == 1)) && !((p == 4 && d == B * 4) && B == 1)) && !((B == 1 && p == 16) && d == B * 16)) || !(q == 0)) || !(A == r)) || ((0 <= A && p == 1) && A <= 10)) || (p == 2 && B <= r)) || (p == 8 && 4 * B <= r)) || (d == B * 16 && 8 * B <= r)) || (d == B * 4 && 2 * B <= r) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.62 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 77.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.43 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.01 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 404.93 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 55.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 239273.80 ms. Allocated memory was 100.7 MB in the beginning and 931.1 MB in the end (delta: 830.5 MB). Free memory was 55.3 MB in the beginning and 814.4 MB in the end (delta: -759.1 MB). Peak memory consumption was 567.3 MB. Max. memory is 16.1 GB. * Witness Printer took 81.15 ms. Allocated memory is still 931.1 MB. Free memory was 814.4 MB in the beginning and 811.3 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process Received shutdown request...