./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4_false-unreach-call.2.ufo.BOUNDED-8.pals_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4_false-unreach-call.2.ufo.BOUNDED-8.pals_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ece07e091f918f26c76e2a65f38501df262220c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 06:09:18,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:09:18,784 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:09:18,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:09:18,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:09:18,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:09:18,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:09:18,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:09:18,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:09:18,798 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:09:18,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:09:18,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:09:18,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:09:18,801 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:09:18,802 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:09:18,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:09:18,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:09:18,804 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:09:18,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:09:18,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:09:18,807 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:09:18,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:09:18,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:09:18,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:09:18,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:09:18,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:09:18,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:09:18,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:09:18,811 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:09:18,811 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:09:18,812 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:09:18,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:09:18,812 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:09:18,812 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:09:18,813 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:09:18,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:09:18,813 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 06:09:18,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:09:18,821 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:09:18,821 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 06:09:18,821 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 06:09:18,822 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 06:09:18,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:09:18,822 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 06:09:18,823 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 06:09:18,823 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:09:18,823 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 06:09:18,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 06:09:18,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 06:09:18,824 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_ad4b86ee-d71e-477e-ac47-2405f0a9e770/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 ! call(__VERIFIER_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 -> 5ece07e091f918f26c76e2a65f38501df262220c [2018-12-09 06:09:18,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:09:18,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:09:18,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:09:18,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:09:18,857 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:09:18,858 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4_false-unreach-call.2.ufo.BOUNDED-8.pals_true-termination.c [2018-12-09 06:09:18,901 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/data/a44ea1b7b/d127851a95ae403da4289ee5bcc13a07/FLAGad2ee17ef [2018-12-09 06:09:19,313 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:09:19,313 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4_false-unreach-call.2.ufo.BOUNDED-8.pals_true-termination.c [2018-12-09 06:09:19,318 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/data/a44ea1b7b/d127851a95ae403da4289ee5bcc13a07/FLAGad2ee17ef [2018-12-09 06:09:19,326 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/data/a44ea1b7b/d127851a95ae403da4289ee5bcc13a07 [2018-12-09 06:09:19,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:09:19,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:09:19,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:09:19,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:09:19,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:09:19,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79df640a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19, skipping insertion in model container [2018-12-09 06:09:19,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:09:19,353 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:09:19,465 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:09:19,470 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:09:19,527 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:09:19,537 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:09:19,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19 WrapperNode [2018-12-09 06:09:19,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:09:19,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:09:19,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:09:19,538 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:09:19,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:09:19,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:09:19,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:09:19,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:09:19,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... [2018-12-09 06:09:19,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:09:19,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:09:19,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:09:19,588 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:09:19,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:09:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/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 06:09:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:09:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:09:20,573 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:09:20,573 INFO L280 CfgBuilder]: Removed 19 assue(true) statements. [2018-12-09 06:09:20,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:09:20 BoogieIcfgContainer [2018-12-09 06:09:20,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:09:20,574 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 06:09:20,574 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 06:09:20,582 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 06:09:20,582 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:09:20" (1/1) ... [2018-12-09 06:09:20,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:09:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:09:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-12-09 06:09:20,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-12-09 06:09:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 06:09:20,613 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:09:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:09:20,823 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 06:09:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:09:20,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2018-12-09 06:09:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-12-09 06:09:20,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 06:09:20,889 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:09:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:09:21,307 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2018-12-09 06:09:21,433 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2018-12-09 06:09:21,435 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 06:09:21,645 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2018-12-09 06:09:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:09:22,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 13 states and 22 transitions. [2018-12-09 06:09:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 22 transitions. [2018-12-09 06:09:22,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 06:09:22,195 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:09:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:09:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:09:22,972 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2018-12-09 06:09:23,277 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-12-09 06:09:23,915 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-12-09 06:09:24,259 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-12-09 06:09:24,620 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-12-09 06:09:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:09:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 19 states and 38 transitions. [2018-12-09 06:09:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 38 transitions. [2018-12-09 06:09:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 06:09:24,695 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:09:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:09:26,179 WARN L180 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 92 [2018-12-09 06:09:32,302 WARN L180 SmtUtils]: Spent 5.89 s on a formula simplification. DAG size of input: 504 DAG size of output: 250 [2018-12-09 06:09:34,840 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 509 DAG size of output: 276 [2018-12-09 06:09:37,890 WARN L180 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 479 DAG size of output: 259 [2018-12-09 06:09:40,324 WARN L180 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 475 DAG size of output: 255 [2018-12-09 06:09:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:09:40,664 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-12-09 06:09:42,169 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 256 DAG size of output: 246 [2018-12-09 06:09:43,183 WARN L180 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2018-12-09 06:09:45,379 WARN L180 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 258 DAG size of output: 256 [2018-12-09 06:09:46,299 WARN L180 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2018-12-09 06:09:47,508 WARN L180 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 256 [2018-12-09 06:09:49,113 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 254 DAG size of output: 244 [2018-12-09 06:09:50,122 WARN L180 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 254 [2018-12-09 06:09:50,903 WARN L180 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2018-12-09 06:09:51,458 WARN L180 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2018-12-09 06:09:52,488 WARN L180 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2018-12-09 06:09:54,009 WARN L180 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 254 DAG size of output: 250 [2018-12-09 06:09:55,511 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 260 DAG size of output: 260 [2018-12-09 06:09:56,649 WARN L180 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 259 [2018-12-09 06:09:57,255 WARN L180 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2018-12-09 06:09:58,382 WARN L180 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 260 DAG size of output: 256 [2018-12-09 06:09:59,352 WARN L180 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 258 [2018-12-09 06:10:00,481 WARN L180 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 257 [2018-12-09 06:10:01,062 WARN L180 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2018-12-09 06:10:01,978 WARN L180 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 237 [2018-12-09 06:10:02,930 WARN L180 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230 [2018-12-09 06:10:03,948 WARN L180 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 246 [2018-12-09 06:10:04,496 WARN L180 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2018-12-09 06:10:05,277 WARN L180 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2018-12-09 06:10:06,300 WARN L180 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 234 [2018-12-09 06:10:07,255 WARN L180 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 226 [2018-12-09 06:10:07,761 WARN L180 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2018-12-09 06:10:08,296 WARN L180 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2018-12-09 06:10:08,930 WARN L180 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2018-12-09 06:10:09,553 WARN L180 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2018-12-09 06:10:10,252 WARN L180 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2018-12-09 06:10:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:10:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 28 states and 67 transitions. [2018-12-09 06:10:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 67 transitions. [2018-12-09 06:10:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 06:10:10,373 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:10:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:10:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:10:12,206 WARN L180 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 269 [2018-12-09 06:10:12,810 WARN L180 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2018-12-09 06:10:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:10:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 29 states and 69 transitions. [2018-12-09 06:10:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 69 transitions. [2018-12-09 06:10:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 06:10:13,230 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:10:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:10:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:10:16,318 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 255 DAG size of output: 240 [2018-12-09 06:10:17,576 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 257 DAG size of output: 206 [2018-12-09 06:10:18,195 WARN L180 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2018-12-09 06:10:18,656 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2018-12-09 06:10:19,667 WARN L180 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 238 [2018-12-09 06:10:20,397 WARN L180 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 204 [2018-12-09 06:10:20,942 WARN L180 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-12-09 06:10:21,403 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2018-12-09 06:10:22,465 WARN L180 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 240 [2018-12-09 06:10:23,504 WARN L180 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 242 [2018-12-09 06:10:24,121 WARN L180 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2018-12-09 06:10:24,726 WARN L180 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2018-12-09 06:10:25,665 WARN L180 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 238 [2018-12-09 06:10:26,550 WARN L180 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 240 [2018-12-09 06:10:27,163 WARN L180 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-12-09 06:10:27,777 WARN L180 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2018-12-09 06:10:28,092 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 102 [2018-12-09 06:10:29,668 WARN L180 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 260 DAG size of output: 258 [2018-12-09 06:10:30,552 WARN L180 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2018-12-09 06:10:30,865 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 100 [2018-12-09 06:10:31,664 WARN L180 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2018-12-09 06:10:32,521 WARN L180 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2018-12-09 06:10:32,841 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 110 [2018-12-09 06:10:33,468 WARN L180 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2018-12-09 06:10:34,449 WARN L180 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2018-12-09 06:10:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:10:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 37 states and 99 transitions. [2018-12-09 06:10:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 99 transitions. [2018-12-09 06:10:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 06:10:34,585 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:10:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:10:39,027 WARN L180 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 410 DAG size of output: 90 [2018-12-09 06:10:58,203 WARN L180 SmtUtils]: Spent 17.99 s on a formula simplification. DAG size of input: 1070 DAG size of output: 371 [2018-12-09 06:11:12,701 WARN L180 SmtUtils]: Spent 13.47 s on a formula simplification. DAG size of input: 1162 DAG size of output: 439 [2018-12-09 06:11:30,856 WARN L180 SmtUtils]: Spent 16.99 s on a formula simplification. DAG size of input: 1217 DAG size of output: 608 [2018-12-09 06:11:48,187 WARN L180 SmtUtils]: Spent 16.37 s on a formula simplification. DAG size of input: 1079 DAG size of output: 516 [2018-12-09 06:12:04,042 WARN L180 SmtUtils]: Spent 14.83 s on a formula simplification. DAG size of input: 1077 DAG size of output: 497 [2018-12-09 06:12:14,016 WARN L180 SmtUtils]: Spent 9.01 s on a formula simplification. DAG size of input: 957 DAG size of output: 352 [2018-12-09 06:12:24,482 WARN L180 SmtUtils]: Spent 9.44 s on a formula simplification. DAG size of input: 953 DAG size of output: 351 [2018-12-09 06:12:24,517 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 06:12:25,006 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2018-12-09 06:12:28,786 WARN L180 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 429 DAG size of output: 295 [2018-12-09 06:12:31,692 WARN L180 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 319 DAG size of output: 310 [2018-12-09 06:12:35,785 WARN L180 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 425 DAG size of output: 363 [2018-12-09 06:12:37,431 WARN L180 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 287 DAG size of output: 286 [2018-12-09 06:12:39,513 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 359 DAG size of output: 358 [2018-12-09 06:12:42,897 WARN L180 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 427 DAG size of output: 293 [2018-12-09 06:12:47,209 WARN L180 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 423 DAG size of output: 361 [2018-12-09 06:12:48,872 WARN L180 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2018-12-09 06:12:51,274 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 357 DAG size of output: 356 [2018-12-09 06:12:56,864 WARN L180 SmtUtils]: Spent 5.37 s on a formula simplification. DAG size of input: 500 DAG size of output: 419 [2018-12-09 06:13:00,369 WARN L180 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 369 DAG size of output: 364 [2018-12-09 06:13:05,674 WARN L180 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 498 DAG size of output: 451 [2018-12-09 06:13:09,690 WARN L180 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 411 DAG size of output: 408 [2018-12-09 06:13:12,818 WARN L180 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 446 DAG size of output: 446 [2018-12-09 06:13:20,160 WARN L180 SmtUtils]: Spent 6.98 s on a formula simplification. DAG size of input: 498 DAG size of output: 417 [2018-12-09 06:13:24,873 WARN L180 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 496 DAG size of output: 449 [2018-12-09 06:13:28,140 WARN L180 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 409 DAG size of output: 406 [2018-12-09 06:13:31,335 WARN L180 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 444 DAG size of output: 444 [2018-12-09 06:13:39,583 WARN L180 SmtUtils]: Spent 7.96 s on a formula simplification. DAG size of input: 633 DAG size of output: 573 [2018-12-09 06:13:46,076 WARN L180 SmtUtils]: Spent 5.83 s on a formula simplification. DAG size of input: 519 DAG size of output: 493 [2018-12-09 06:13:53,079 WARN L180 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 607 DAG size of output: 596 [2018-12-09 06:13:57,826 WARN L180 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 569 DAG size of output: 569 [2018-12-09 06:14:04,155 WARN L180 SmtUtils]: Spent 5.70 s on a formula simplification. DAG size of input: 596 DAG size of output: 594 [2018-12-09 06:14:11,983 WARN L180 SmtUtils]: Spent 7.00 s on a formula simplification. DAG size of input: 631 DAG size of output: 571 [2018-12-09 06:14:18,944 WARN L180 SmtUtils]: Spent 6.75 s on a formula simplification. DAG size of input: 605 DAG size of output: 594 [2018-12-09 06:14:24,296 WARN L180 SmtUtils]: Spent 4.72 s on a formula simplification. DAG size of input: 567 DAG size of output: 567 [2018-12-09 06:14:29,419 WARN L180 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 594 DAG size of output: 592 [2018-12-09 06:14:32,323 WARN L180 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 574 DAG size of output: 432 [2018-12-09 06:14:35,372 WARN L180 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 442 DAG size of output: 431 [2018-12-09 06:14:39,949 WARN L180 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 563 DAG size of output: 559 [2018-12-09 06:14:43,203 WARN L180 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 429 DAG size of output: 429 [2018-12-09 06:14:45,936 WARN L180 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 559 [2018-12-09 06:14:49,520 WARN L180 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 556 DAG size of output: 420 [2018-12-09 06:14:52,540 WARN L180 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 423 DAG size of output: 418 [2018-12-09 06:14:56,357 WARN L180 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 553 DAG size of output: 551 [2018-12-09 06:14:59,264 WARN L180 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 421 DAG size of output: 421 [2018-12-09 06:15:01,706 WARN L180 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 552 [2018-12-09 06:15:04,480 WARN L180 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 566 DAG size of output: 426 [2018-12-09 06:15:09,050 WARN L180 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 563 DAG size of output: 561 [2018-12-09 06:15:11,994 WARN L180 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 427 DAG size of output: 424 [2018-12-09 06:15:14,385 WARN L180 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 562 [2018-12-09 06:15:17,261 WARN L180 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 437 DAG size of output: 403 [2018-12-09 06:15:19,300 WARN L180 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 292 DAG size of output: 289 [2018-12-09 06:15:22,525 WARN L180 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 436 DAG size of output: 432 [2018-12-09 06:15:25,469 WARN L180 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 403 DAG size of output: 400 [2018-12-09 06:15:27,375 WARN L180 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 432 [2018-12-09 06:15:30,513 WARN L180 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 435 DAG size of output: 400 [2018-12-09 06:15:32,331 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 291 DAG size of output: 286 [2018-12-09 06:15:35,488 WARN L180 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 433 DAG size of output: 432 [2018-12-09 06:15:37,172 WARN L180 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 400 [2018-12-09 06:15:39,023 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 433 [2018-12-09 06:15:42,430 WARN L180 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 448 DAG size of output: 447 [2018-12-09 06:15:44,393 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 448 [2018-12-09 06:15:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:15:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 52 states and 154 transitions. [2018-12-09 06:15:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 154 transitions. [2018-12-09 06:15:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 06:15:44,720 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:15:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:15:47,331 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 06:15:50,713 WARN L180 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 493 DAG size of output: 450 [2018-12-09 06:15:53,539 WARN L180 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 481 DAG size of output: 479 [2018-12-09 06:15:56,583 WARN L180 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 447 DAG size of output: 447 [2018-12-09 06:15:59,813 WARN L180 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 479 DAG size of output: 479 [2018-12-09 06:16:03,869 WARN L180 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 473 DAG size of output: 438 [2018-12-09 06:16:07,605 WARN L180 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 470 DAG size of output: 470 [2018-12-09 06:16:10,899 WARN L180 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 439 DAG size of output: 439 [2018-12-09 06:16:12,850 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 471 [2018-12-09 06:16:15,987 WARN L180 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 453 DAG size of output: 359 [2018-12-09 06:16:19,601 WARN L180 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 450 DAG size of output: 387 [2018-12-09 06:16:21,914 WARN L180 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 355 DAG size of output: 351 [2018-12-09 06:16:23,426 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 383 [2018-12-09 06:16:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:16:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 55 states and 165 transitions. [2018-12-09 06:16:23,887 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 165 transitions. [2018-12-09 06:16:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 06:16:23,887 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:16:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:16:26,427 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 06:16:29,622 WARN L180 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 482 DAG size of output: 442 [2018-12-09 06:16:32,742 WARN L180 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 479 DAG size of output: 479 [2018-12-09 06:16:36,575 WARN L180 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 443 DAG size of output: 443 [2018-12-09 06:16:38,605 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 480 [2018-12-09 06:16:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:16:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 56 states and 167 transitions. [2018-12-09 06:16:39,253 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 167 transitions. [2018-12-09 06:16:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 06:16:39,253 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:16:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:16:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 13 proven. 38 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 06:16:44,974 WARN L180 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 404 DAG size of output: 401 [2018-12-09 06:16:48,268 WARN L180 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 406 DAG size of output: 402 [2018-12-09 06:16:50,010 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 401 [2018-12-09 06:16:51,882 WARN L180 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 402 [2018-12-09 06:16:53,402 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 401 [2018-12-09 06:16:56,605 WARN L180 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 403 DAG size of output: 402 [2018-12-09 06:16:58,586 WARN L180 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 402 [2018-12-09 06:17:00,349 WARN L180 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 403 [2018-12-09 06:17:01,232 WARN L180 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 61 [2018-12-09 06:17:04,986 WARN L180 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 439 DAG size of output: 437 [2018-12-09 06:17:07,275 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 438 [2018-12-09 06:17:07,792 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 58 [2018-12-09 06:17:10,000 WARN L180 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 438 [2018-12-09 06:17:12,710 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 439 [2018-12-09 06:17:13,402 WARN L180 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 69 [2018-12-09 06:17:15,111 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 453 [2018-12-09 06:17:17,693 WARN L180 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 454 [2018-12-09 06:17:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 06:17:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 61 states and 191 transitions. [2018-12-09 06:17:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 191 transitions. [2018-12-09 06:17:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 06:17:18,010 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 06:17:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:17:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:17:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:17:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:17:20,638 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2018-12-09 06:17:20,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 06:17:20 ImpRootNode [2018-12-09 06:17:20,694 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 06:17:20,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:17:20,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:17:20,694 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:17:20,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:09:20" (3/4) ... [2018-12-09 06:17:20,696 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 06:17:20,766 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ad4b86ee-d71e-477e-ac47-2405f0a9e770/bin-2019/ukojak/witness.graphml [2018-12-09 06:17:20,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:17:20,767 INFO L168 Benchmark]: Toolchain (without parser) took 481439.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 962.4 MB in the beginning and 752.2 MB in the end (delta: 210.2 MB). Peak memory consumption was 309.3 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,767 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:17:20,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:17:20,768 INFO L168 Benchmark]: Boogie Preprocessor took 19.46 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,768 INFO L168 Benchmark]: RCFGBuilder took 985.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 867.1 MB in the end (delta: 232.9 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,768 INFO L168 Benchmark]: CodeCheck took 480120.36 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.8 MB). Free memory was 867.1 MB in the beginning and 765.2 MB in the end (delta: 101.9 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,768 INFO L168 Benchmark]: Witness Printer took 72.22 ms. Allocated memory is still 1.1 GB. Free memory was 765.2 MB in the beginning and 752.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-09 06:17:20,769 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 1 procedures, 95 locations, 1 error locations. UNSAFE Result, 480.0s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5920 SDtfs, 8208 SDslu, 12164 SDs, 0 SdLazy, 33710 SolverSat, 7774 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2039 GetRequests, 1746 SyntacticMatches, 59 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28596 ImplicationChecksByTransitivity, 460.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 133.5s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 3064014 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 19/242 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 - CounterExampleResult [Line: 432]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L70] msg_t nomsg = (msg_t )-1; [L71] char r1 ; [L72] port_t p1 ; [L73] char p1_old ; [L74] char p1_new ; [L75] char id1 ; [L76] char st1 ; [L77] msg_t send1 ; [L78] _Bool mode1 ; [L79] _Bool alive1 ; [L80] port_t p2 ; [L81] char p2_old ; [L82] char p2_new ; [L83] char id2 ; [L84] char st2 ; [L85] msg_t send2 ; [L86] _Bool mode2 ; [L87] _Bool alive2 ; [L88] port_t p3 ; [L89] char p3_old ; [L90] char p3_new ; [L91] char id3 ; [L92] char st3 ; [L93] msg_t send3 ; [L94] _Bool mode3 ; [L95] _Bool alive3 ; [L96] port_t p4 ; [L97] char p4_old ; [L98] char p4_new ; [L99] char id4 ; [L100] char st4 ; [L101] msg_t send4 ; [L102] _Bool mode4 ; [L103] _Bool alive4 ; [L238] void (*nodes[4])(void) = { & node1, & node2, & node3, & node4}; [L366] int c1 ; [L367] int i2 ; [L370] c1 = 0 [L371] r1 = __VERIFIER_nondet_char() [L372] id1 = __VERIFIER_nondet_char() [L373] st1 = __VERIFIER_nondet_char() [L374] send1 = __VERIFIER_nondet_char() [L375] mode1 = __VERIFIER_nondet_bool() [L376] alive1 = __VERIFIER_nondet_bool() [L377] id2 = __VERIFIER_nondet_char() [L378] st2 = __VERIFIER_nondet_char() [L379] send2 = __VERIFIER_nondet_char() [L380] mode2 = __VERIFIER_nondet_bool() [L381] alive2 = __VERIFIER_nondet_bool() [L382] id3 = __VERIFIER_nondet_char() [L383] st3 = __VERIFIER_nondet_char() [L384] send3 = __VERIFIER_nondet_char() [L385] mode3 = __VERIFIER_nondet_bool() [L386] alive3 = __VERIFIER_nondet_bool() [L387] id4 = __VERIFIER_nondet_char() [L388] st4 = __VERIFIER_nondet_char() [L389] send4 = __VERIFIER_nondet_char() [L390] mode4 = __VERIFIER_nondet_bool() [L391] alive4 = __VERIFIER_nondet_bool() [L241] int tmp ; [L244] COND TRUE (int )r1 == 0 [L245] COND TRUE (((int )alive1 + (int )alive2) + (int )alive3) + (int )alive4 >= 1 [L246] COND TRUE (int )id1 >= 0 [L247] COND TRUE (int )st1 == 0 [L248] COND TRUE (int )send1 == (int )id1 [L249] COND TRUE (int )mode1 == 0 [L250] COND TRUE (int )id2 >= 0 [L251] COND TRUE (int )st2 == 0 [L252] COND TRUE (int )send2 == (int )id2 [L253] COND TRUE (int )mode2 == 0 [L254] COND TRUE (int )id3 >= 0 [L255] COND TRUE (int )st3 == 0 [L256] COND TRUE (int )send3 == (int )id3 [L257] COND TRUE (int )mode3 == 0 [L258] COND TRUE (int )id4 >= 0 [L259] COND TRUE (int )st4 == 0 [L260] COND TRUE (int )send4 == (int )id4 [L261] COND TRUE (int )mode4 == 0 [L262] COND TRUE (int )id1 != (int )id2 [L263] COND TRUE (int )id1 != (int )id3 [L264] COND TRUE (int )id1 != (int )id4 [L265] COND TRUE (int )id2 != (int )id3 [L266] COND TRUE (int )id2 != (int )id4 [L267] COND TRUE (int )id3 != (int )id4 [L268] tmp = 1 [L341] return (tmp); [L392] i2 = init() [L394] p1_old = nomsg [L395] p1_new = nomsg [L396] p2_old = nomsg [L397] p2_new = nomsg [L398] p3_old = nomsg [L399] p3_new = nomsg [L400] p4_old = nomsg [L401] p4_new = nomsg [L402] i2 = 0 VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=0, send1=3, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND FALSE !(\read(mode1)) [L128] COND FALSE !(\read(alive1)) [L131] mode1 = (_Bool)1 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND FALSE !(\read(mode2)) [L159] COND FALSE !(\read(alive2)) [L162] COND FALSE !((int )send2 != (int )id2) [L165] mode2 = (_Bool)1 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND FALSE !(\read(mode3)) [L193] COND FALSE !(\read(alive3)) [L196] COND FALSE !((int )send3 != (int )id3) [L199] mode3 = (_Bool)1 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND FALSE !(\read(mode4)) [L227] COND TRUE \read(alive4) [L228] EXPR send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L228] p4_new = send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L233] mode4 = (_Bool)1 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=0, send1=3, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=0, send1=3, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND TRUE \read(mode1) [L111] r1 = (char )((int )r1 + 1) [L112] m1 = p4_old [L113] p4_old = nomsg [L114] COND TRUE (int )m1 != (int )nomsg [L115] COND FALSE !(\read(alive1)) [L123] send1 = m1 [L126] mode1 = (_Bool)0 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND TRUE \read(mode2) [L143] m2 = p1_old [L144] p1_old = nomsg [L145] COND FALSE !((int )m2 != (int )nomsg) [L157] mode2 = (_Bool)0 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND TRUE \read(mode3) [L177] m3 = p2_old [L178] p2_old = nomsg [L179] COND FALSE !((int )m3 != (int )nomsg) [L191] mode3 = (_Bool)0 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND TRUE \read(mode4) [L211] m4 = p3_old [L212] p3_old = nomsg [L213] COND FALSE !((int )m4 != (int )nomsg) [L225] mode4 = (_Bool)0 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=1, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=1, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND FALSE !(\read(mode1)) [L128] COND FALSE !(\read(alive1)) [L131] mode1 = (_Bool)1 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND FALSE !(\read(mode2)) [L159] COND FALSE !(\read(alive2)) [L162] COND FALSE !((int )send2 != (int )id2) [L165] mode2 = (_Bool)1 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND FALSE !(\read(mode3)) [L193] COND FALSE !(\read(alive3)) [L196] COND FALSE !((int )send3 != (int )id3) [L199] mode3 = (_Bool)1 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND FALSE !(\read(mode4)) [L227] COND TRUE \read(alive4) [L228] EXPR send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L228] p4_new = send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L233] mode4 = (_Bool)1 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=1, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=1, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND TRUE \read(mode1) [L111] r1 = (char )((int )r1 + 1) [L112] m1 = p4_old [L113] p4_old = nomsg [L114] COND TRUE (int )m1 != (int )nomsg [L115] COND FALSE !(\read(alive1)) [L123] send1 = m1 [L126] mode1 = (_Bool)0 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND TRUE \read(mode2) [L143] m2 = p1_old [L144] p1_old = nomsg [L145] COND FALSE !((int )m2 != (int )nomsg) [L157] mode2 = (_Bool)0 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND TRUE \read(mode3) [L177] m3 = p2_old [L178] p2_old = nomsg [L179] COND FALSE !((int )m3 != (int )nomsg) [L191] mode3 = (_Bool)0 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND TRUE \read(mode4) [L211] m4 = p3_old [L212] p3_old = nomsg [L213] COND FALSE !((int )m4 != (int )nomsg) [L225] mode4 = (_Bool)0 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=2, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=2, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND FALSE !(\read(mode1)) [L128] COND FALSE !(\read(alive1)) [L131] mode1 = (_Bool)1 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND FALSE !(\read(mode2)) [L159] COND FALSE !(\read(alive2)) [L162] COND FALSE !((int )send2 != (int )id2) [L165] mode2 = (_Bool)1 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND FALSE !(\read(mode3)) [L193] COND FALSE !(\read(alive3)) [L196] COND FALSE !((int )send3 != (int )id3) [L199] mode3 = (_Bool)1 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND FALSE !(\read(mode4)) [L227] COND TRUE \read(alive4) [L228] EXPR send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L228] p4_new = send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L233] mode4 = (_Bool)1 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=2, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=2, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND TRUE \read(mode1) [L111] r1 = (char )((int )r1 + 1) [L112] m1 = p4_old [L113] p4_old = nomsg [L114] COND TRUE (int )m1 != (int )nomsg [L115] COND FALSE !(\read(alive1)) [L123] send1 = m1 [L126] mode1 = (_Bool)0 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND TRUE \read(mode2) [L143] m2 = p1_old [L144] p1_old = nomsg [L145] COND FALSE !((int )m2 != (int )nomsg) [L157] mode2 = (_Bool)0 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND TRUE \read(mode3) [L177] m3 = p2_old [L178] p2_old = nomsg [L179] COND FALSE !((int )m3 != (int )nomsg) [L191] mode3 = (_Bool)0 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND TRUE \read(mode4) [L211] m4 = p3_old [L212] p3_old = nomsg [L213] COND FALSE !((int )m4 != (int )nomsg) [L225] mode4 = (_Bool)0 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=3, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=3, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND FALSE !(\read(mode1)) [L128] COND FALSE !(\read(alive1)) [L131] mode1 = (_Bool)1 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND FALSE !(\read(mode2)) [L159] COND FALSE !(\read(alive2)) [L162] COND FALSE !((int )send2 != (int )id2) [L165] mode2 = (_Bool)1 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND FALSE !(\read(mode3)) [L193] COND FALSE !(\read(alive3)) [L196] COND FALSE !((int )send3 != (int )id3) [L199] mode3 = (_Bool)1 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND FALSE !(\read(mode4)) [L227] COND TRUE \read(alive4) [L228] EXPR send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L228] p4_new = send4 != nomsg && p4_new == nomsg ? send4 : p4_new [L233] mode4 = (_Bool)1 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND TRUE (int )r1 < 4 [L351] tmp = 1 [L361] return (tmp); [L417] c1 = check() [L430] COND FALSE !(! arg) VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=3, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L419] i2 ++ VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=1, mode2=1, mode3=1, mode4=1, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=1, r1=3, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L403] COND TRUE i2 < 8 [L106] msg_t m1 ; [L109] m1 = nomsg [L110] COND TRUE \read(mode1) [L111] r1 = (char )((int )r1 + 1) [L112] m1 = p4_old [L113] p4_old = nomsg [L114] COND TRUE (int )m1 != (int )nomsg [L115] COND FALSE !(\read(alive1)) [L123] send1 = m1 [L126] mode1 = (_Bool)0 [L138] msg_t m2 ; [L141] m2 = nomsg [L142] COND TRUE \read(mode2) [L143] m2 = p1_old [L144] p1_old = nomsg [L145] COND FALSE !((int )m2 != (int )nomsg) [L157] mode2 = (_Bool)0 [L172] msg_t m3 ; [L175] m3 = nomsg [L176] COND TRUE \read(mode3) [L177] m3 = p2_old [L178] p2_old = nomsg [L179] COND FALSE !((int )m3 != (int )nomsg) [L191] mode3 = (_Bool)0 [L206] msg_t m4 ; [L209] m4 = nomsg [L210] COND TRUE \read(mode4) [L211] m4 = p3_old [L212] p3_old = nomsg [L213] COND FALSE !((int )m4 != (int )nomsg) [L225] mode4 = (_Bool)0 [L409] p1_old = p1_new [L410] p1_new = nomsg [L411] p2_old = p2_new [L412] p2_new = nomsg [L413] p3_old = p3_new [L414] p3_new = nomsg [L415] p4_old = p4_new [L416] p4_new = nomsg [L346] int tmp ; [L349] COND TRUE (((int )st1 + (int )st2) + (int )st3) + (int )st4 <= 1 [L350] COND FALSE !((int )r1 < 4) [L353] COND FALSE !((((int )st1 + (int )st2) + (int )st3) + (int )st4 == 1) [L356] tmp = 0 [L361] return (tmp); [L417] c1 = check() [L430] COND TRUE ! arg VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=4, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] [L432] __VERIFIER_error() VAL [alive1=0, alive2=0, alive3=0, alive4=1, id1=3, id2=0, id3=2, id4=1, mode1=0, mode2=0, mode3=0, mode4=0, nomsg=-1, p1=0, p1_new=-1, p1_old=-1, p2=0, p2_new=-1, p2_old=-1, p3=0, p3_new=-1, p3_old=-1, p4=0, p4_new=-1, p4_old=-1, r1=4, send1=1, send2=0, send3=2, send4=1, st1=0, st2=0, st3=0, st4=0] * 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.46 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 985.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 867.1 MB in the end (delta: 232.9 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. * CodeCheck took 480120.36 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -16.8 MB). Free memory was 867.1 MB in the beginning and 765.2 MB in the end (delta: 101.9 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. * Witness Printer took 72.22 ms. Allocated memory is still 1.1 GB. Free memory was 765.2 MB in the beginning and 752.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...