./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/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 f2cbbf56a13532141372a32a461d64a9d1351c0e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:08:53,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:08:53,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:08:53,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:08:53,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:08:53,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:08:53,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:08:53,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:08:53,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:08:53,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:08:53,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:08:53,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:08:53,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:08:53,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:08:53,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:08:53,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:08:53,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:08:53,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:08:53,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:08:53,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:08:53,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:08:53,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:08:53,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:08:53,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:08:53,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:08:53,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:08:53,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:08:53,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:08:53,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:08:53,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:08:53,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:08:53,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:08:53,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:08:53,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:08:53,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:08:53,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:08:53,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:08:53,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:08:53,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:08:53,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:08:53,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:08:53,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 11:08:53,524 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:08:53,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:08:53,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 11:08:53,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 11:08:53,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:08:53,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:08:53,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:08:53,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:08:53,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:08:53,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:08:53,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:08:53,527 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:08:53,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:08:53,528 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 11:08:53,528 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 11:08:53,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:08:53,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:08:53,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 11:08:53,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:08:53,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:08:53,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:08:53,529 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 11:08:53,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:08:53,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:08:53,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> f2cbbf56a13532141372a32a461d64a9d1351c0e [2019-11-20 11:08:53,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:08:53,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:08:53,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:08:53,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:08:53,695 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:08:53,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_8.c [2019-11-20 11:08:53,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/data/45dcb6826/8a1a501a2f324e30ab59be98b76a490c/FLAG737ef17c6 [2019-11-20 11:08:54,101 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:08:54,102 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/sv-benchmarks/c/locks/test_locks_8.c [2019-11-20 11:08:54,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/data/45dcb6826/8a1a501a2f324e30ab59be98b76a490c/FLAG737ef17c6 [2019-11-20 11:08:54,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/data/45dcb6826/8a1a501a2f324e30ab59be98b76a490c [2019-11-20 11:08:54,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:08:54,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:08:54,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:08:54,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:08:54,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:08:54,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7d441b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54, skipping insertion in model container [2019-11-20 11:08:54,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:08:54,511 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:08:54,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:08:54,722 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:08:54,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:08:54,816 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:08:54,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54 WrapperNode [2019-11-20 11:08:54,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:08:54,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:08:54,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:08:54,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:08:54,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:08:54,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:08:54,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:08:54,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:08:54,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... [2019-11-20 11:08:54,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:08:54,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:08:54,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:08:54,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:08:54,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:08:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 11:08:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:08:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:08:55,330 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:08:55,331 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 11:08:55,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:55 BoogieIcfgContainer [2019-11-20 11:08:55,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:08:55,333 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 11:08:55,333 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 11:08:55,341 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 11:08:55,342 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:55" (1/1) ... [2019-11-20 11:08:55,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:08:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 41 transitions. [2019-11-20 11:08:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 41 transitions. [2019-11-20 11:08:55,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 11:08:55,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2019-11-20 11:08:55,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-20 11:08:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 11:08:55,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2019-11-20 11:08:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2019-11-20 11:08:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 11:08:55,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2019-11-20 11:08:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2019-11-20 11:08:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 11:08:55,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2019-11-20 11:08:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2019-11-20 11:08:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 11:08:56,417 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:56,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2019-11-20 11:08:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2019-11-20 11:08:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 11:08:56,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:57,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2019-11-20 11:08:57,355 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-11-20 11:08:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 11:08:57,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2019-11-20 11:08:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2019-11-20 11:08:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:08:57,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:57,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2019-11-20 11:08:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2019-11-20 11:08:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:08:57,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:57,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2019-11-20 11:08:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-11-20 11:08:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:08:57,854 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 52 transitions. [2019-11-20 11:08:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2019-11-20 11:08:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 11:08:58,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:59,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2019-11-20 11:08:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2019-11-20 11:08:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:08:59,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:59,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2019-11-20 11:08:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-11-20 11:08:59,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:08:59,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2019-11-20 11:08:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2019-11-20 11:08:59,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:08:59,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:08:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:08:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2019-11-20 11:08:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2019-11-20 11:08:59,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:08:59,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:08:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:08:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 36 states and 57 transitions. [2019-11-20 11:09:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2019-11-20 11:09:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 11:09:00,917 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:00,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:01,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2019-11-20 11:09:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2019-11-20 11:09:01,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:01,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2019-11-20 11:09:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2019-11-20 11:09:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:01,436 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2019-11-20 11:09:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2019-11-20 11:09:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:01,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:02,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2019-11-20 11:09:02,051 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 11:09:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:02,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:04,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:04,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 62 transitions. [2019-11-20 11:09:04,580 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2019-11-20 11:09:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:04,580 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 39 states and 62 transitions. [2019-11-20 11:09:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-20 11:09:04,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 11:09:04,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2019-11-20 11:09:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2019-11-20 11:09:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:05,069 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2019-11-20 11:09:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-11-20 11:09:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:05,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2019-11-20 11:09:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2019-11-20 11:09:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:05,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2019-11-20 11:09:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2019-11-20 11:09:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:06,071 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 40 states and 67 transitions. [2019-11-20 11:09:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2019-11-20 11:09:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:08,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2019-11-20 11:09:09,179 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2019-11-20 11:09:09,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:09,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:09,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 67 transitions. [2019-11-20 11:09:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2019-11-20 11:09:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:09:09,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 32 states and 52 transitions. [2019-11-20 11:09:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2019-11-20 11:09:09,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:09,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:10,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2019-11-20 11:09:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2019-11-20 11:09:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:10,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2019-11-20 11:09:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2019-11-20 11:09:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:10,699 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2019-11-20 11:09:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2019-11-20 11:09:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:11,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:11,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2019-11-20 11:09:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2019-11-20 11:09:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:11,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2019-11-20 11:09:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-11-20 11:09:11,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:11,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2019-11-20 11:09:12,012 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2019-11-20 11:09:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 11:09:12,012 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 11:09:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:12,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 11:09:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2019-11-20 11:09:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2019-11-20 11:09:12,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:09:12,428 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2019-11-20 11:09:12,438 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 11:09:12,675 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 11:09:12,678 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 11:09:12,678 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 11:09:12,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 11:09:12 ImpRootNode [2019-11-20 11:09:12,678 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 11:09:12,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:09:12,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:09:12,679 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:09:12,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:55" (3/4) ... [2019-11-20 11:09:12,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:09:12,691 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 11:09:12,691 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 11:09:12,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 11:09:12,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e55799b8-5e45-45f4-b8af-4d3c7994d55f/bin/ukojak/witness.graphml [2019-11-20 11:09:12,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:09:12,751 INFO L168 Benchmark]: Toolchain (without parser) took 18272.05 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 422.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 291.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,752 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:09:12,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:09:12,753 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,753 INFO L168 Benchmark]: RCFGBuilder took 462.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,754 INFO L168 Benchmark]: CodeCheck took 17345.61 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 274.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 298.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,754 INFO L168 Benchmark]: Witness Printer took 70.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:12,757 INFO L335 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, 24 locations, 1 error locations. Result: SAFE, OverallTime: 17.0s, OverallIterations: 37, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, -25694468 SDslu, 0 SDs, 0 SdLazy, -1280512520 SolverSat, -588800260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3976 GetRequests, 3720 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29471 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 20372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 462.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. * CodeCheck took 17345.61 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 274.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 298.2 MB. Max. memory is 11.5 GB. * Witness Printer took 70.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...