./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f81dd1ef8995b0b07e1ce6d856db2fedb8abb1366230168a1e5c2e68aff05e24 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:29:35,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:29:35,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:29:35,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:29:35,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:29:35,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:29:35,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:29:35,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:29:35,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:29:35,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:29:35,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:29:35,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:29:35,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:29:35,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:29:35,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:29:35,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:29:35,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:29:35,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:29:35,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:29:35,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:29:35,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:29:35,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:29:35,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:29:35,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:29:35,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:29:35,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:29:35,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:29:35,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:29:35,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:29:35,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:29:35,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:29:35,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:29:35,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:29:35,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:29:35,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:29:35,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:29:35,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:29:35,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:29:35,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:29:35,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:29:35,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:29:35,767 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:29:35,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:29:35,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:29:35,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:29:35,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:29:35,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:29:35,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:29:35,837 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:29:35,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:29:35,838 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:29:35,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:29:35,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:29:35,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:29:35,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:29:35,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:29:35,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:29:35,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:29:35,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:29:35,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:29:35,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:29:35,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:29:35,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:29:35,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:29:35,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:29:35,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:29:35,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:29:35,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:29:35,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:29:35,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:29:35,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:29:35,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:29:35,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:29:35,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:29:35,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81dd1ef8995b0b07e1ce6d856db2fedb8abb1366230168a1e5c2e68aff05e24 [2021-10-21 19:29:36,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:29:36,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:29:36,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:29:36,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:29:36,203 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:29:36,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem02_label09.c [2021-10-21 19:29:36,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/data/fac15173d/b13aaea4681c43d5a11be8de70c32cad/FLAG2690b4163 [2021-10-21 19:29:36,996 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:29:36,997 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/sv-benchmarks/c/eca-rers2012/Problem02_label09.c [2021-10-21 19:29:37,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/data/fac15173d/b13aaea4681c43d5a11be8de70c32cad/FLAG2690b4163 [2021-10-21 19:29:37,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/data/fac15173d/b13aaea4681c43d5a11be8de70c32cad [2021-10-21 19:29:37,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:29:37,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:29:37,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:29:37,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:29:37,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:29:37,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:37" (1/1) ... [2021-10-21 19:29:37,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1047a109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:37, skipping insertion in model container [2021-10-21 19:29:37,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:37" (1/1) ... [2021-10-21 19:29:37,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:29:37,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:29:37,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/sv-benchmarks/c/eca-rers2012/Problem02_label09.c[19170,19183] [2021-10-21 19:29:37,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:29:37,834 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:29:37,960 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/sv-benchmarks/c/eca-rers2012/Problem02_label09.c[19170,19183] [2021-10-21 19:29:37,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:29:37,999 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:29:38,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38 WrapperNode [2021-10-21 19:29:38,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:29:38,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:29:38,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:29:38,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:29:38,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:29:38,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:29:38,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:29:38,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:29:38,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:29:38,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:29:38,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:29:38,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:29:38,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (1/1) ... [2021-10-21 19:29:38,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:29:38,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:38,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:38,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:29:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:29:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:29:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:29:38,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:29:39,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:29:39,856 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:29:39,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:39 BoogieIcfgContainer [2021-10-21 19:29:39,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:29:39,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:29:39,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:29:39,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:29:39,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:29:37" (1/3) ... [2021-10-21 19:29:39,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0ae905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:29:39, skipping insertion in model container [2021-10-21 19:29:39,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:38" (2/3) ... [2021-10-21 19:29:39,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0ae905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:29:39, skipping insertion in model container [2021-10-21 19:29:39,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:39" (3/3) ... [2021-10-21 19:29:39,882 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label09.c [2021-10-21 19:29:39,896 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:29:39,897 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:29:39,979 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:29:39,988 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:29:39,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:29:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-21 19:29:40,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:40,032 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:40,032 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:40,040 INFO L82 PathProgramCache]: Analyzing trace with hash -701342005, now seen corresponding path program 1 times [2021-10-21 19:29:40,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:40,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920810545] [2021-10-21 19:29:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:40,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:40,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:40,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920810545] [2021-10-21 19:29:40,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920810545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:40,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:40,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:29:40,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275635553] [2021-10-21 19:29:40,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:40,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:40,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:40,616 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:41,543 INFO L93 Difference]: Finished difference Result 596 states and 1030 transitions. [2021-10-21 19:29:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-10-21 19:29:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:41,582 INFO L225 Difference]: With dead ends: 596 [2021-10-21 19:29:41,583 INFO L226 Difference]: Without dead ends: 305 [2021-10-21 19:29:41,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-10-21 19:29:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-10-21 19:29:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.5263157894736843) internal successors, (464), 304 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2021-10-21 19:29:41,667 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 121 [2021-10-21 19:29:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:41,669 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2021-10-21 19:29:41,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2021-10-21 19:29:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-21 19:29:41,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:41,675 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:41,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:29:41,676 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:41,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:41,677 INFO L82 PathProgramCache]: Analyzing trace with hash -446392561, now seen corresponding path program 1 times [2021-10-21 19:29:41,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:41,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737909207] [2021-10-21 19:29:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:41,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:41,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:41,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737909207] [2021-10-21 19:29:41,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737909207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:41,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:41,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:29:41,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64845788] [2021-10-21 19:29:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:41,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:41,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:41,832 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:42,477 INFO L93 Difference]: Finished difference Result 900 states and 1374 transitions. [2021-10-21 19:29:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:42,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-10-21 19:29:42,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:42,483 INFO L225 Difference]: With dead ends: 900 [2021-10-21 19:29:42,484 INFO L226 Difference]: Without dead ends: 597 [2021-10-21 19:29:42,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-10-21 19:29:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 456. [2021-10-21 19:29:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.4901098901098901) internal successors, (678), 455 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 678 transitions. [2021-10-21 19:29:42,565 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 678 transitions. Word has length 132 [2021-10-21 19:29:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:42,566 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 678 transitions. [2021-10-21 19:29:42,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:42,567 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 678 transitions. [2021-10-21 19:29:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-21 19:29:42,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:42,573 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:42,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:29:42,574 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:42,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -944126998, now seen corresponding path program 1 times [2021-10-21 19:29:42,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:42,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867704372] [2021-10-21 19:29:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:42,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:42,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:42,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867704372] [2021-10-21 19:29:42,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867704372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:42,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:42,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:29:42,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857555153] [2021-10-21 19:29:42,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:42,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:42,759 INFO L87 Difference]: Start difference. First operand 456 states and 678 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:43,315 INFO L93 Difference]: Finished difference Result 1350 states and 2015 transitions. [2021-10-21 19:29:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:43,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-10-21 19:29:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:43,322 INFO L225 Difference]: With dead ends: 1350 [2021-10-21 19:29:43,323 INFO L226 Difference]: Without dead ends: 896 [2021-10-21 19:29:43,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-10-21 19:29:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 749. [2021-10-21 19:29:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 1.4398395721925135) internal successors, (1077), 748 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1077 transitions. [2021-10-21 19:29:43,369 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1077 transitions. Word has length 139 [2021-10-21 19:29:43,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:43,370 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 1077 transitions. [2021-10-21 19:29:43,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1077 transitions. [2021-10-21 19:29:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-21 19:29:43,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:43,380 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:43,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:29:43,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:43,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:43,385 INFO L82 PathProgramCache]: Analyzing trace with hash -175879692, now seen corresponding path program 1 times [2021-10-21 19:29:43,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:43,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422232886] [2021-10-21 19:29:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:43,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:43,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:43,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:43,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422232886] [2021-10-21 19:29:43,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422232886] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:43,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:43,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:29:43,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826200403] [2021-10-21 19:29:43,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:43,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:43,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:43,556 INFO L87 Difference]: Start difference. First operand 749 states and 1077 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:44,104 INFO L93 Difference]: Finished difference Result 2199 states and 3171 transitions. [2021-10-21 19:29:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:44,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-10-21 19:29:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:44,115 INFO L225 Difference]: With dead ends: 2199 [2021-10-21 19:29:44,116 INFO L226 Difference]: Without dead ends: 1452 [2021-10-21 19:29:44,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2021-10-21 19:29:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1312. [2021-10-21 19:29:44,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 1.3646071700991609) internal successors, (1789), 1311 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1789 transitions. [2021-10-21 19:29:44,168 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1789 transitions. Word has length 143 [2021-10-21 19:29:44,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:44,168 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 1789 transitions. [2021-10-21 19:29:44,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1789 transitions. [2021-10-21 19:29:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-10-21 19:29:44,174 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:44,174 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:44,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:29:44,175 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:44,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:44,178 INFO L82 PathProgramCache]: Analyzing trace with hash 628161490, now seen corresponding path program 1 times [2021-10-21 19:29:44,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:44,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220412264] [2021-10-21 19:29:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:44,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 19:29:44,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:44,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220412264] [2021-10-21 19:29:44,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220412264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:44,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:44,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:44,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921779491] [2021-10-21 19:29:44,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:44,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:44,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:44,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:44,300 INFO L87 Difference]: Start difference. First operand 1312 states and 1789 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:44,948 INFO L93 Difference]: Finished difference Result 3742 states and 5086 transitions. [2021-10-21 19:29:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2021-10-21 19:29:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:44,964 INFO L225 Difference]: With dead ends: 3742 [2021-10-21 19:29:44,964 INFO L226 Difference]: Without dead ends: 2432 [2021-10-21 19:29:44,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:44,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2021-10-21 19:29:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2432. [2021-10-21 19:29:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2431 states have (on average 1.2924722336487042) internal successors, (3142), 2431 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3142 transitions. [2021-10-21 19:29:45,051 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3142 transitions. Word has length 169 [2021-10-21 19:29:45,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:45,053 INFO L470 AbstractCegarLoop]: Abstraction has 2432 states and 3142 transitions. [2021-10-21 19:29:45,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3142 transitions. [2021-10-21 19:29:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-21 19:29:45,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:45,063 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:45,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:29:45,063 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:45,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1951611608, now seen corresponding path program 1 times [2021-10-21 19:29:45,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:45,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296730130] [2021-10-21 19:29:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:45,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-21 19:29:45,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:45,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296730130] [2021-10-21 19:29:45,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296730130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:45,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:45,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:29:45,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376940986] [2021-10-21 19:29:45,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:45,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:45,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:45,162 INFO L87 Difference]: Start difference. First operand 2432 states and 3142 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:45,504 INFO L93 Difference]: Finished difference Result 4707 states and 6079 transitions. [2021-10-21 19:29:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:45,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-10-21 19:29:45,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:45,560 INFO L225 Difference]: With dead ends: 4707 [2021-10-21 19:29:45,563 INFO L226 Difference]: Without dead ends: 2277 [2021-10-21 19:29:45,566 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2021-10-21 19:29:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2277. [2021-10-21 19:29:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.2319859402460458) internal successors, (2804), 2276 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 2804 transitions. [2021-10-21 19:29:45,632 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 2804 transitions. Word has length 170 [2021-10-21 19:29:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:45,632 INFO L470 AbstractCegarLoop]: Abstraction has 2277 states and 2804 transitions. [2021-10-21 19:29:45,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 2804 transitions. [2021-10-21 19:29:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-21 19:29:45,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:45,640 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:45,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:29:45,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:45,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:45,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1273710115, now seen corresponding path program 1 times [2021-10-21 19:29:45,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:45,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10620656] [2021-10-21 19:29:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:45,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-21 19:29:45,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:45,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10620656] [2021-10-21 19:29:45,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10620656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:45,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:45,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:45,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853247832] [2021-10-21 19:29:45,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:45,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:45,714 INFO L87 Difference]: Start difference. First operand 2277 states and 2804 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:46,223 INFO L93 Difference]: Finished difference Result 4411 states and 5430 transitions. [2021-10-21 19:29:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:46,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-10-21 19:29:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:46,238 INFO L225 Difference]: With dead ends: 4411 [2021-10-21 19:29:46,238 INFO L226 Difference]: Without dead ends: 2136 [2021-10-21 19:29:46,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:46,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-10-21 19:29:46,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2130. [2021-10-21 19:29:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.173790511977454) internal successors, (2499), 2129 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2499 transitions. [2021-10-21 19:29:46,301 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2499 transitions. Word has length 174 [2021-10-21 19:29:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:46,302 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 2499 transitions. [2021-10-21 19:29:46,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2499 transitions. [2021-10-21 19:29:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-21 19:29:46,308 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:46,309 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:46,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:29:46,309 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash -183148420, now seen corresponding path program 1 times [2021-10-21 19:29:46,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:46,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769563646] [2021-10-21 19:29:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:46,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-21 19:29:46,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:46,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769563646] [2021-10-21 19:29:46,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769563646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:46,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:46,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:46,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947566653] [2021-10-21 19:29:46,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:46,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:46,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:46,394 INFO L87 Difference]: Start difference. First operand 2130 states and 2499 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:46,908 INFO L93 Difference]: Finished difference Result 3547 states and 4159 transitions. [2021-10-21 19:29:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:46,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-10-21 19:29:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:46,921 INFO L225 Difference]: With dead ends: 3547 [2021-10-21 19:29:46,921 INFO L226 Difference]: Without dead ends: 1846 [2021-10-21 19:29:46,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-10-21 19:29:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1846. [2021-10-21 19:29:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.1447154471544716) internal successors, (2112), 1845 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2112 transitions. [2021-10-21 19:29:46,975 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2112 transitions. Word has length 174 [2021-10-21 19:29:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:46,977 INFO L470 AbstractCegarLoop]: Abstraction has 1846 states and 2112 transitions. [2021-10-21 19:29:46,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2112 transitions. [2021-10-21 19:29:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-10-21 19:29:46,983 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:46,984 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:46,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:29:46,984 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1922058559, now seen corresponding path program 1 times [2021-10-21 19:29:46,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:46,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608802705] [2021-10-21 19:29:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:46,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 19:29:47,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:47,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608802705] [2021-10-21 19:29:47,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608802705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:47,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:47,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:47,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798424888] [2021-10-21 19:29:47,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:47,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:47,062 INFO L87 Difference]: Start difference. First operand 1846 states and 2112 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:47,558 INFO L93 Difference]: Finished difference Result 3965 states and 4534 transitions. [2021-10-21 19:29:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:47,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2021-10-21 19:29:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:47,572 INFO L225 Difference]: With dead ends: 3965 [2021-10-21 19:29:47,572 INFO L226 Difference]: Without dead ends: 2121 [2021-10-21 19:29:47,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2021-10-21 19:29:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121. [2021-10-21 19:29:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.1320754716981132) internal successors, (2400), 2120 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:47,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2400 transitions. [2021-10-21 19:29:47,640 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2400 transitions. Word has length 176 [2021-10-21 19:29:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:47,641 INFO L470 AbstractCegarLoop]: Abstraction has 2121 states and 2400 transitions. [2021-10-21 19:29:47,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2400 transitions. [2021-10-21 19:29:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-10-21 19:29:47,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:47,649 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:47,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:29:47,649 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:47,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:47,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1456387651, now seen corresponding path program 1 times [2021-10-21 19:29:47,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:47,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421789804] [2021-10-21 19:29:47,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:47,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:47,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:47,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421789804] [2021-10-21 19:29:47,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421789804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:47,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:47,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:47,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542283205] [2021-10-21 19:29:47,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:29:47,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:47,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:29:47,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:29:47,800 INFO L87 Difference]: Start difference. First operand 2121 states and 2400 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:48,443 INFO L93 Difference]: Finished difference Result 4427 states and 5000 transitions. [2021-10-21 19:29:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:29:48,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-10-21 19:29:48,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:48,460 INFO L225 Difference]: With dead ends: 4427 [2021-10-21 19:29:48,460 INFO L226 Difference]: Without dead ends: 2308 [2021-10-21 19:29:48,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:29:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2021-10-21 19:29:48,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2261. [2021-10-21 19:29:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2260 states have (on average 1.1261061946902655) internal successors, (2545), 2260 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2545 transitions. [2021-10-21 19:29:48,551 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2545 transitions. Word has length 189 [2021-10-21 19:29:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:48,552 INFO L470 AbstractCegarLoop]: Abstraction has 2261 states and 2545 transitions. [2021-10-21 19:29:48,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2545 transitions. [2021-10-21 19:29:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-21 19:29:48,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:48,562 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:48,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:29:48,563 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:48,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:48,564 INFO L82 PathProgramCache]: Analyzing trace with hash -45055208, now seen corresponding path program 1 times [2021-10-21 19:29:48,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:48,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789642246] [2021-10-21 19:29:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:48,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:48,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:48,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789642246] [2021-10-21 19:29:48,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789642246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:48,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:48,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:29:48,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053787880] [2021-10-21 19:29:48,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:29:48,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:48,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:29:48,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:29:48,743 INFO L87 Difference]: Start difference. First operand 2261 states and 2545 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:49,725 INFO L93 Difference]: Finished difference Result 5131 states and 5759 transitions. [2021-10-21 19:29:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:29:49,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-10-21 19:29:49,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:49,741 INFO L225 Difference]: With dead ends: 5131 [2021-10-21 19:29:49,741 INFO L226 Difference]: Without dead ends: 2446 [2021-10-21 19:29:49,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:29:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2021-10-21 19:29:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1699. [2021-10-21 19:29:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1698 states have (on average 1.0906949352179034) internal successors, (1852), 1698 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 1852 transitions. [2021-10-21 19:29:49,821 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 1852 transitions. Word has length 194 [2021-10-21 19:29:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:49,822 INFO L470 AbstractCegarLoop]: Abstraction has 1699 states and 1852 transitions. [2021-10-21 19:29:49,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 1852 transitions. [2021-10-21 19:29:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-10-21 19:29:49,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:49,829 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:49,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:29:49,829 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash 160424803, now seen corresponding path program 1 times [2021-10-21 19:29:49,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:49,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674579959] [2021-10-21 19:29:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:49,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-21 19:29:49,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:49,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674579959] [2021-10-21 19:29:49,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674579959] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:49,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:49,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:29:49,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576939993] [2021-10-21 19:29:49,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:29:49,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:49,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:29:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:29:49,960 INFO L87 Difference]: Start difference. First operand 1699 states and 1852 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:50,845 INFO L93 Difference]: Finished difference Result 3563 states and 3879 transitions. [2021-10-21 19:29:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:29:50,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2021-10-21 19:29:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:50,859 INFO L225 Difference]: With dead ends: 3563 [2021-10-21 19:29:50,859 INFO L226 Difference]: Without dead ends: 2006 [2021-10-21 19:29:50,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:29:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2021-10-21 19:29:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1559. [2021-10-21 19:29:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 1.0885750962772787) internal successors, (1696), 1558 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1696 transitions. [2021-10-21 19:29:50,914 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1696 transitions. Word has length 198 [2021-10-21 19:29:50,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:50,914 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 1696 transitions. [2021-10-21 19:29:50,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1696 transitions. [2021-10-21 19:29:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-10-21 19:29:50,921 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:50,922 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:50,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:29:50,922 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:50,923 INFO L82 PathProgramCache]: Analyzing trace with hash 401347841, now seen corresponding path program 1 times [2021-10-21 19:29:50,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:50,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588188465] [2021-10-21 19:29:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:50,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-21 19:29:51,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:51,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588188465] [2021-10-21 19:29:51,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588188465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:51,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:29:51,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:29:51,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362501412] [2021-10-21 19:29:51,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:29:51,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:29:51,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:51,025 INFO L87 Difference]: Start difference. First operand 1559 states and 1696 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:51,493 INFO L93 Difference]: Finished difference Result 3538 states and 3870 transitions. [2021-10-21 19:29:51,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:29:51,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2021-10-21 19:29:51,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:51,494 INFO L225 Difference]: With dead ends: 3538 [2021-10-21 19:29:51,494 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:29:51,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:29:51,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:29:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:29:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:29:51,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2021-10-21 19:29:51,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:51,500 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:29:51,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:29:51,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:29:51,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:29:51,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:29:51,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:29:51,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:51,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:51,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:52,799 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-21 19:29:52,800 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,801 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,802 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-10-21 19:29:52,803 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,804 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-21 19:29:52,805 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-10-21 19:29:52,806 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,807 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,812 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-21 19:29:52,812 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-10-21 19:29:52,812 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-10-21 19:29:52,812 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-10-21 19:29:52,813 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-21 19:29:52,813 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,813 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,814 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,815 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-21 19:29:52,815 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-21 19:29:52,815 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,816 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-21 19:29:52,817 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,818 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-10-21 19:29:52,819 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-10-21 19:29:52,819 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-10-21 19:29:52,820 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-10-21 19:29:52,820 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-10-21 19:29:52,820 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-10-21 19:29:52,820 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-21 19:29:52,821 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:29:52,822 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-21 19:29:52,823 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,824 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,825 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-21 19:29:52,826 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,827 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-21 19:29:52,828 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-10-21 19:29:52,828 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-10-21 19:29:52,828 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-10-21 19:29:52,828 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-21 19:29:52,828 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-21 19:29:52,831 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-10-21 19:29:52,831 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-10-21 19:29:52,832 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-21 19:29:52,832 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse7 (= ~a21~0 1)) (.cse3 (= ~a19~0 1)) (.cse8 (not (= ~a11~0 1))) (.cse6 (<= ~a28~0 9)) (.cse4 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a17~0 7) .cse4) (and .cse5 .cse0 (= ~a11~0 0) .cse1 .cse2) (and .cse5 .cse0 .cse6 .cse1) (and (= ~a17~0 8) .cse0 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse7 .cse3 .cse8) (and .cse7 (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse1 .cse2 .cse3 .cse8 .cse4) (and .cse6 .cse1 .cse4) (and .cse5 .cse0 (<= 8 ~a17~0) .cse1 .cse2))) [2021-10-21 19:29:52,832 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,832 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-10-21 19:29:52,833 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-21 19:29:52,834 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,835 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-21 19:29:52,836 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-21 19:29:52,838 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse7 (= ~a21~0 1)) (.cse3 (= ~a19~0 1)) (.cse8 (not (= ~a11~0 1))) (.cse6 (<= ~a28~0 9)) (.cse4 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a17~0 7) .cse4) (and .cse5 .cse0 (= ~a11~0 0) .cse1 .cse2) (and .cse5 .cse0 .cse6 .cse1) (and (= ~a17~0 8) .cse0 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse7 .cse3 .cse8) (and .cse7 (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse1 .cse2 .cse3 .cse8 .cse4) (and .cse6 .cse1 .cse4) (and .cse5 .cse0 (<= 8 ~a17~0) .cse1 .cse2))) [2021-10-21 19:29:52,838 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,838 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,838 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-21 19:29:52,838 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-10-21 19:29:52,839 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-21 19:29:52,840 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-10-21 19:29:52,841 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,842 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,843 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-21 19:29:52,844 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-21 19:29:52,850 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:29:52,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:29:52 BoogieIcfgContainer [2021-10-21 19:29:52,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:29:52,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:29:52,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:29:52,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:29:52,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:39" (3/4) ... [2021-10-21 19:29:52,894 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:29:52,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:29:52,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:29:52,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:29:52,937 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:29:53,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:29:53,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:29:53,118 INFO L168 Benchmark]: Toolchain (without parser) took 15862.82 ms. Allocated memory was 96.5 MB in the beginning and 192.9 MB in the end (delta: 96.5 MB). Free memory was 64.2 MB in the beginning and 72.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,119 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:29:53,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.73 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 64.2 MB in the beginning and 82.2 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.91 ms. Allocated memory is still 121.6 MB. Free memory was 82.2 MB in the beginning and 77.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,121 INFO L168 Benchmark]: Boogie Preprocessor took 161.36 ms. Allocated memory is still 121.6 MB. Free memory was 76.6 MB in the beginning and 73.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,121 INFO L168 Benchmark]: RCFGBuilder took 1546.47 ms. Allocated memory is still 121.6 MB. Free memory was 72.4 MB in the beginning and 71.5 MB in the end (delta: 867.7 kB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,122 INFO L168 Benchmark]: TraceAbstraction took 13025.31 ms. Allocated memory was 121.6 MB in the beginning and 192.9 MB in the end (delta: 71.3 MB). Free memory was 70.8 MB in the beginning and 87.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 93.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,123 INFO L168 Benchmark]: Witness Printer took 226.24 ms. Allocated memory is still 192.9 MB. Free memory was 87.6 MB in the beginning and 72.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:53,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 744.73 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 64.2 MB in the beginning and 82.2 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.91 ms. Allocated memory is still 121.6 MB. Free memory was 82.2 MB in the beginning and 77.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 161.36 ms. Allocated memory is still 121.6 MB. Free memory was 76.6 MB in the beginning and 73.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1546.47 ms. Allocated memory is still 121.6 MB. Free memory was 72.4 MB in the beginning and 71.5 MB in the end (delta: 867.7 kB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13025.31 ms. Allocated memory was 121.6 MB in the beginning and 192.9 MB in the end (delta: 71.3 MB). Free memory was 70.8 MB in the beginning and 87.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 93.1 MB. Max. memory is 16.1 GB. * Witness Printer took 226.24 ms. Allocated memory is still 192.9 MB. Free memory was 87.6 MB in the beginning and 72.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12872.9ms, OverallIterations: 13, TraceHistogramMax: 5, EmptinessCheckTime: 103.3ms, AutomataDifference: 8482.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1294.7ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1167 SDtfs, 2476 SDslu, 208 SDs, 0 SdLazy, 5465 SolverSat, 866 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5756.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 166.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2432occurred in iteration=5, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 766.7ms AutomataMinimizationTime, 13 MinimizatonAttempts, 1675 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 53 NumberOfFragments, 249 HoareAnnotationTreeSize, 3 FomulaSimplifications, 14017 FormulaSimplificationTreeSizeReduction, 595.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 2414 FormulaSimplificationTreeSizeReductionInter, 686.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 177.8ms SsaConstructionTime, 421.6ms SatisfiabilityAnalysisTime, 1217.4ms InterpolantComputationTime, 2198 NumberOfCodeBlocks, 2198 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2185 ConstructedInterpolants, 0 QuantifiedInterpolants, 4909 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 948/948 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((a25 == 1 && a17 <= 8) && a28 <= 10) && a19 == 1) || (a17 <= 7 && a25 <= 0)) || ((((9 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 8)) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((((a21 == 1 && !(5 == input)) && a17 <= 8) && a28 <= 10) && a19 == 1) && !(a11 == 1)) && a25 <= 0)) || ((a28 <= 9 && a17 <= 8) && a25 <= 0)) || ((((9 <= a28 && a25 == 1) && 8 <= a17) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((a25 == 1 && a17 <= 8) && a28 <= 10) && a19 == 1) || (a17 <= 7 && a25 <= 0)) || ((((9 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 8)) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((((a21 == 1 && !(5 == input)) && a17 <= 8) && a28 <= 10) && a19 == 1) && !(a11 == 1)) && a25 <= 0)) || ((a28 <= 9 && a17 <= 8) && a25 <= 0)) || ((((9 <= a28 && a25 == 1) && 8 <= a17) && a17 <= 8) && a28 <= 10) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:29:53,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0fc138b-4bee-4220-92ff-b9dab2aa544a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...