./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 05:24:22,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:24:22,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:24:22,632 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:24:22,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:24:22,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:24:22,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:24:22,634 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:24:22,635 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:24:22,636 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:24:22,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:24:22,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:24:22,637 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:24:22,637 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:24:22,638 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:24:22,638 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:24:22,639 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:24:22,640 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:24:22,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:24:22,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:24:22,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:24:22,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:24:22,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:24:22,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:24:22,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:24:22,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:24:22,645 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:24:22,645 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:24:22,646 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:24:22,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:24:22,647 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:24:22,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:24:22,647 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:24:22,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:24:22,648 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:24:22,648 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:24:22,648 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-12-09 05:24:22,656 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:24:22,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:24:22,656 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 05:24:22,656 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 05:24:22,657 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:24:22,657 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:24:22,657 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:24:22,657 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 05:24:22,657 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 05:24:22,658 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 05:24:22,659 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:24:22,659 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:24:22,659 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 05:24:22,659 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 05:24:22,659 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 05:24:22,659 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:24:22,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 05:24:22,660 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 05:24:22,660 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/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 ! overflow) ) 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 -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-12-09 05:24:22,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:24:22,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:24:22,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:24:22,690 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:24:22,690 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:24:22,691 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-12-09 05:24:22,736 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/data/9b6a67f73/28a34e3b893545079e155f9e891d0f72/FLAGe037b262d [2018-12-09 05:24:23,115 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:24:23,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-12-09 05:24:23,118 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/data/9b6a67f73/28a34e3b893545079e155f9e891d0f72/FLAGe037b262d [2018-12-09 05:24:23,126 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/data/9b6a67f73/28a34e3b893545079e155f9e891d0f72 [2018-12-09 05:24:23,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:24:23,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:24:23,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:24:23,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:24:23,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:24:23,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59facd15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23, skipping insertion in model container [2018-12-09 05:24:23,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:24:23,149 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:24:23,234 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:24:23,236 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:24:23,246 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:24:23,255 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:24:23,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23 WrapperNode [2018-12-09 05:24:23,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:24:23,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:24:23,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:24:23,256 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:24:23,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:24:23,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:24:23,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:24:23,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:24:23,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:24:23,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:24:23,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:24:23,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:24:23,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/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 [2018-12-09 05:24:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:24:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:24:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 05:24:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 05:24:23,485 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:24:23,485 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 05:24:23,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:23 BoogieIcfgContainer [2018-12-09 05:24:23,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:24:23,486 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 05:24:23,486 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 05:24:23,493 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 05:24:23,493 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:23" (1/1) ... [2018-12-09 05:24:23,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:24:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2018-12-09 05:24:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-12-09 05:24:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 05:24:23,527 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2018-12-09 05:24:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-12-09 05:24:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 05:24:23,629 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-12-09 05:24:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-12-09 05:24:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 05:24:23,696 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:23,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2018-12-09 05:24:23,769 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-12-09 05:24:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 05:24:23,769 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2018-12-09 05:24:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-12-09 05:24:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 05:24:23,814 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2018-12-09 05:24:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2018-12-09 05:24:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 05:24:23,939 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2018-12-09 05:24:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2018-12-09 05:24:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 05:24:24,047 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 05:24:24,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2018-12-09 05:24:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2018-12-09 05:24:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 05:24:24,099 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 05:24:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2018-12-09 05:24:24,289 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2018-12-09 05:24:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 05:24:24,289 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 05:24:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-12-09 05:24:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-12-09 05:24:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 05:24:24,449 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-09 05:24:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2018-12-09 05:24:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2018-12-09 05:24:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 05:24:24,536 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 05:24:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 44 states and 60 transitions. [2018-12-09 05:24:24,735 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2018-12-09 05:24:24,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 05:24:24,736 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 69 transitions. [2018-12-09 05:24:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2018-12-09 05:24:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 05:24:25,097 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2018-12-09 05:24:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2018-12-09 05:24:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 05:24:25,220 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 56 states and 83 transitions. [2018-12-09 05:24:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2018-12-09 05:24:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 05:24:25,310 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 05:24:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2018-12-09 05:24:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2018-12-09 05:24:25,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 05:24:25,382 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 05:24:25,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 52 states and 72 transitions. [2018-12-09 05:24:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2018-12-09 05:24:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 05:24:25,459 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 05:24:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 59 states and 81 transitions. [2018-12-09 05:24:25,814 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2018-12-09 05:24:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 05:24:25,814 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 05:24:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2018-12-09 05:24:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2018-12-09 05:24:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 05:24:25,950 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 67 states and 94 transitions. [2018-12-09 05:24:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2018-12-09 05:24:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 05:24:26,263 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2018-12-09 05:24:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2018-12-09 05:24:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 05:24:26,777 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:24:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 76 states and 112 transitions. [2018-12-09 05:24:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 112 transitions. [2018-12-09 05:24:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 05:24:26,898 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 80 states and 120 transitions. [2018-12-09 05:24:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2018-12-09 05:24:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 05:24:27,410 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 05:24:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 81 states and 121 transitions. [2018-12-09 05:24:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 121 transitions. [2018-12-09 05:24:27,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 05:24:27,671 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 85 states and 129 transitions. [2018-12-09 05:24:28,121 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 129 transitions. [2018-12-09 05:24:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 05:24:28,122 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 89 states and 137 transitions. [2018-12-09 05:24:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 137 transitions. [2018-12-09 05:24:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:28,733 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 93 states and 141 transitions. [2018-12-09 05:24:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 141 transitions. [2018-12-09 05:24:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:29,773 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-09 05:24:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 98 states and 152 transitions. [2018-12-09 05:24:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 152 transitions. [2018-12-09 05:24:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:30,525 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 100 states and 156 transitions. [2018-12-09 05:24:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 156 transitions. [2018-12-09 05:24:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:30,930 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 105 states and 167 transitions. [2018-12-09 05:24:31,752 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2018-12-09 05:24:31,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:31,753 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 105 states and 166 transitions. [2018-12-09 05:24:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 166 transitions. [2018-12-09 05:24:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 05:24:32,173 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 05:24:32,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:32,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 108 states and 175 transitions. [2018-12-09 05:24:32,478 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2018-12-09 05:24:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-09 05:24:32,479 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 52 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-12-09 05:24:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 119 states and 196 transitions. [2018-12-09 05:24:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 196 transitions. [2018-12-09 05:24:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-09 05:24:33,566 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 05:24:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:24:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 56 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-09 05:24:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 05:24:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2018-12-09 05:24:33,938 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-09 05:24:33,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 05:24:33,939 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2018-12-09 05:24:33,944 INFO L779 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2018-12-09 05:24:34,016 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 05:24:34,018 INFO L583 CodeCheckObserver]: Invariant with dag size 39 [2018-12-09 05:24:34,023 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 05:24:34,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 05:24:34 ImpRootNode [2018-12-09 05:24:34,023 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 05:24:34,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:24:34,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:24:34,024 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:24:34,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:23" (3/4) ... [2018-12-09 05:24:34,026 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 05:24:34,029 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 05:24:34,032 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 05:24:34,032 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 05:24:34,032 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 05:24:34,059 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ce3bbe14-9d33-4e21-9aad-0236e4423cfd/bin-2019/ukojak/witness.graphml [2018-12-09 05:24:34,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:24:34,060 INFO L168 Benchmark]: Toolchain (without parser) took 10931.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 267.4 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -229.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,060 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:24:34,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.09 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.79 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:24:34,061 INFO L168 Benchmark]: Boogie Preprocessor took 40.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,061 INFO L168 Benchmark]: RCFGBuilder took 170.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,062 INFO L168 Benchmark]: CodeCheck took 10537.11 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,062 INFO L168 Benchmark]: Witness Printer took 35.94 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:24:34,064 INFO L336 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, 36 locations, 8 error locations. SAFE Result, 10.4s OverallTime, 34 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 6248476 SDslu, 0 SDs, 0 SdLazy, 385505878 SolverSat, -1775766434 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6859 GetRequests, 6230 SyntacticMatches, 321 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55876 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 785 NumberOfCodeBlocks, 785 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 752 ConstructedInterpolants, 0 QuantifiedInterpolants, 99288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 10 PerfectInterpolantSequences, 538/1314 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((a == 63 && b == 18) || ((63 <= b + a && b == 18) && b + a <= 63)) || ((b == 18 && 63 <= 3 * b + a) && 3 * b + a <= 63)) || ((b + a <= 18 && b + 18 <= 3 * a) && a < b + 1)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || (((b <= 0 && a <= 9) && b + 1 <= a) && 0 < b + 1) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.09 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.79 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * CodeCheck took 10537.11 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * Witness Printer took 35.94 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...