./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.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_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/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 c4a921a48f99bfe08f1ebfef6b48605d2b05f34d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:05:52,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:05:52,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:05:52,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:05:52,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:05:52,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:05:52,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:05:52,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:05:52,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:05:52,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:05:52,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:05:52,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:05:52,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:05:52,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:05:52,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:05:52,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:05:52,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:05:52,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:05:52,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:05:52,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:05:52,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:05:52,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:05:52,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:05:52,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:05:52,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:05:52,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:05:52,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:05:52,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:05:52,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:05:52,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:05:52,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:05:52,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:05:52,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:05:52,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:05:52,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:05:52,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:05:52,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:05:52,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:05:52,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:05:52,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:05:52,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:05:52,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:05:52,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:05:52,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:05:52,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:05:52,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:05:52,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:05:52,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:05:52,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:05:52,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:05:52,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:05:52,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:05:52,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:05:52,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:05:52,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:05:52,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:05:52,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:05:52,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:05:52,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:05:52,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:05:52,256 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:05:52,256 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:05:52,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:05:52,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:05:52,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:05:52,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:05:52,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:05:52,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:05:52,257 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:05:52,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:05:52,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:05:52,258 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_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4a921a48f99bfe08f1ebfef6b48605d2b05f34d [2020-12-01 18:05:52,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:05:52,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:05:52,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:05:52,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:05:52,560 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:05:52,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-01 18:05:52,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/data/b44dc2f25/d03b6e38f53a48b7a04c12357f599efd/FLAG802ea3415 [2020-12-01 18:05:53,186 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:05:53,187 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-01 18:05:53,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/data/b44dc2f25/d03b6e38f53a48b7a04c12357f599efd/FLAG802ea3415 [2020-12-01 18:05:53,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/data/b44dc2f25/d03b6e38f53a48b7a04c12357f599efd [2020-12-01 18:05:53,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:05:53,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:05:53,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:05:53,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:05:53,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:05:53,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ae980c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53, skipping insertion in model container [2020-12-01 18:05:53,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:05:53,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:05:53,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:05:53,814 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:05:53,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:05:53,868 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:05:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53 WrapperNode [2020-12-01 18:05:53,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:05:53,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:05:53,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:05:53,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:05:53,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:05:53,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:05:53,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:05:53,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:05:53,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... [2020-12-01 18:05:53,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:05:53,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:05:53,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:05:53,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:05:53,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/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 18:05:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-12-01 18:05:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-12-01 18:05:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:05:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:05:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:05:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:05:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 18:05:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 18:05:54,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:05:54,330 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 18:05:54,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:54 BoogieIcfgContainer [2020-12-01 18:05:54,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:05:54,333 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:05:54,333 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:05:54,344 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:05:54,345 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:54" (1/1) ... [2020-12-01 18:05:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:05:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2020-12-01 18:05:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-12-01 18:05:54,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:05:54,397 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:54,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 18:05:54,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:05:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 33 states and 52 transitions. [2020-12-01 18:05:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-12-01 18:05:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 18:05:55,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:55,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 18:05:55,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:05:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 36 states and 59 transitions. [2020-12-01 18:05:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2020-12-01 18:05:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 18:05:55,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:55,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 18:05:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 18:05:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 63 transitions. [2020-12-01 18:05:56,173 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2020-12-01 18:05:56,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 18:05:56,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:56,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-01 18:05:56,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 18:05:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 69 transitions. [2020-12-01 18:05:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 69 transitions. [2020-12-01 18:05:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 18:05:56,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:56,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 18:05:56,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 18:05:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:56,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 44 states and 74 transitions. [2020-12-01 18:05:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2020-12-01 18:05:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 18:05:56,895 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:56,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 18:05:56,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 18:05:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 46 states and 80 transitions. [2020-12-01 18:05:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2020-12-01 18:05:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 18:05:57,493 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:57,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 18:05:57,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-01 18:05:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 91 transitions. [2020-12-01 18:05:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 91 transitions. [2020-12-01 18:05:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-01 18:05:58,179 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:58,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 18:05:58,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-12-01 18:05:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 53 states and 95 transitions. [2020-12-01 18:05:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 95 transitions. [2020-12-01 18:05:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 18:05:58,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:58,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 18:05:58,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:05:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-01 18:06:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 63 states and 116 transitions. [2020-12-01 18:06:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 116 transitions. [2020-12-01 18:06:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 18:06:00,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:00,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 18:06:00,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-01 18:06:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 65 states and 119 transitions. [2020-12-01 18:06:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-12-01 18:06:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 18:06:00,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:01,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 18:06:01,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:01,520 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-01 18:06:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 75 states and 142 transitions. [2020-12-01 18:06:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 142 transitions. [2020-12-01 18:06:02,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 18:06:02,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:02,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 18:06:02,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-12-01 18:06:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 79 states and 149 transitions. [2020-12-01 18:06:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 149 transitions. [2020-12-01 18:06:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-01 18:06:03,901 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:03,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 18:06:03,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-12-01 18:06:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 84 states and 160 transitions. [2020-12-01 18:06:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 160 transitions. [2020-12-01 18:06:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-01 18:06:05,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:05,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 18:06:05,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 39 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-12-01 18:06:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 86 states and 165 transitions. [2020-12-01 18:06:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 165 transitions. [2020-12-01 18:06:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 18:06:06,175 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:06,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 18:06:06,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-12-01 18:06:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 96 states and 185 transitions. [2020-12-01 18:06:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 185 transitions. [2020-12-01 18:06:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 18:06:10,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:10,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 18:06:10,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-12-01 18:06:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 100 states and 191 transitions. [2020-12-01 18:06:11,770 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 191 transitions. [2020-12-01 18:06:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 18:06:11,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:11,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-01 18:06:11,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-12-01 18:06:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 104 states and 202 transitions. [2020-12-01 18:06:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 202 transitions. [2020-12-01 18:06:13,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 18:06:13,673 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:13,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 18:06:13,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 36 proven. 22 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2020-12-01 18:06:15,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 108 states and 209 transitions. [2020-12-01 18:06:15,008 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 209 transitions. [2020-12-01 18:06:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-01 18:06:15,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:15,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 18:06:15,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-12-01 18:06:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 109 states and 211 transitions. [2020-12-01 18:06:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 211 transitions. [2020-12-01 18:06:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 18:06:16,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:16,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 18:06:16,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 43 proven. 22 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-12-01 18:06:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 112 states and 215 transitions. [2020-12-01 18:06:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 215 transitions. [2020-12-01 18:06:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-01 18:06:17,462 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:17,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 18:06:17,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 40 proven. 49 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2020-12-01 18:06:21,885 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-12-01 18:06:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 121 states and 233 transitions. [2020-12-01 18:06:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 233 transitions. [2020-12-01 18:06:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-01 18:06:23,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:23,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-01 18:06:23,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 40 proven. 49 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2020-12-01 18:06:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 125 states and 239 transitions. [2020-12-01 18:06:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 239 transitions. [2020-12-01 18:06:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-01 18:06:26,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:26,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 42 conjunts are in the unsatisfiable core [2020-12-01 18:06:26,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 31 proven. 27 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2020-12-01 18:06:29,528 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-12-01 18:06:30,426 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-01 18:06:30,987 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 18:06:31,377 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-01 18:06:32,280 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-01 18:06:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 135 states and 257 transitions. [2020-12-01 18:06:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 257 transitions. [2020-12-01 18:06:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-01 18:06:35,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:35,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 47 conjunts are in the unsatisfiable core [2020-12-01 18:06:35,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 39 proven. 44 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2020-12-01 18:06:39,065 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-01 18:06:40,210 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-01 18:06:41,455 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-01 18:06:42,146 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-01 18:06:42,765 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-01 18:06:43,496 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-01 18:06:44,371 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-12-01 18:06:45,232 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-01 18:06:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 145 states and 275 transitions. [2020-12-01 18:06:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 275 transitions. [2020-12-01 18:06:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-01 18:06:46,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:06:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:06:46,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-01 18:06:46,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:06:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 39 proven. 44 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2020-12-01 18:06:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:06:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 71 states and 106 transitions. [2020-12-01 18:06:50,367 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 106 transitions. [2020-12-01 18:06:50,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:06:50,368 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2020-12-01 18:06:50,374 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:06:50,760 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 18 [2020-12-01 18:06:50,868 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 1 [2020-12-01 18:06:51,152 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 18 [2020-12-01 18:06:51,256 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 1 [2020-12-01 18:06:51,403 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 1 [2020-12-01 18:06:51,583 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-12-01 18:06:51,592 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:06:51,592 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:06:51,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:06:51 ImpRootNode [2020-12-01 18:06:51,593 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:06:51,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:06:51,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:06:51,594 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:06:51,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:54" (3/4) ... [2020-12-01 18:06:51,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:06:51,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2020-12-01 18:06:51,602 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 18:06:51,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-01 18:06:51,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 18:06:51,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:06:51,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:06:51,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d6d5c77f-4aaa-4bd3-89f3-ca765b3eeb96/bin/ukojak/witness.graphml [2020-12-01 18:06:51,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:06:51,660 INFO L168 Benchmark]: Toolchain (without parser) took 58095.83 ms. Allocated memory was 119.5 MB in the beginning and 436.2 MB in the end (delta: 316.7 MB). Free memory was 90.6 MB in the beginning and 375.2 MB in the end (delta: -284.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,661 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:06:51,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.79 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 95.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.52 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 93.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,662 INFO L168 Benchmark]: Boogie Preprocessor took 21.77 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 92.8 MB in the end (delta: 761.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:06:51,663 INFO L168 Benchmark]: RCFGBuilder took 404.01 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 75.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,664 INFO L168 Benchmark]: CodeCheck took 57259.80 ms. Allocated memory was 119.5 MB in the beginning and 436.2 MB in the end (delta: 316.7 MB). Free memory was 75.7 MB in the beginning and 378.3 MB in the end (delta: -302.5 MB). Peak memory consumption was 250.0 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,664 INFO L168 Benchmark]: Witness Printer took 65.71 ms. Allocated memory is still 436.2 MB. Free memory was 378.3 MB in the beginning and 375.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:06:51,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 56.0s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 635502592 SDtfs, 177487390 SDslu, 158998184 SDs, 0 SdLazy, 1430870190 SolverSat, 434529340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13580 GetRequests, 12970 SyntacticMatches, 274 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62257 ImplicationChecksByTransitivity, 48.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 1633 NumberOfCodeBlocks, 1633 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1608 ConstructedInterpolants, 0 QuantifiedInterpolants, 686483 SizeOfPredicates, 106 NumberOfNonLiveVariables, 4231 ConjunctsInSsa, 611 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 4838/5218 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: 47]: Loop Invariant Derived loop invariant: (1 <= r || !((1 <= y && a == 1) && b == y)) || !(x == r + q * y) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.79 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 95.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.52 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 93.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.77 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 92.8 MB in the end (delta: 761.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 404.01 ms. Allocated memory is still 119.5 MB. Free memory was 92.5 MB in the beginning and 75.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 57259.80 ms. Allocated memory was 119.5 MB in the beginning and 436.2 MB in the end (delta: 316.7 MB). Free memory was 75.7 MB in the beginning and 378.3 MB in the end (delta: -302.5 MB). Peak memory consumption was 250.0 MB. Max. memory is 16.1 GB. * Witness Printer took 65.71 ms. Allocated memory is still 436.2 MB. Free memory was 378.3 MB in the beginning and 375.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...