./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt --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 f4a44969557820fe98b70b9dc788f34c237275d3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:38:32,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:38:32,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:38:32,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:38:32,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:38:32,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:38:32,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:38:32,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:38:32,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:38:32,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:38:32,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:38:32,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:38:32,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:38:32,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:38:32,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:38:32,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:38:32,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:38:32,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:38:32,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:38:32,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:38:32,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:38:32,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:38:32,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:38:32,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:38:32,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:38:32,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:38:32,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:38:32,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:38:32,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:38:32,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:38:32,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:38:32,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:38:32,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:38:32,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:38:32,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:38:32,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:38:32,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:38:32,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:38:32,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:38:32,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:38:32,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:38:32,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:38:32,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:38:32,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:38:32,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:38:32,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:38:32,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:38:32,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:38:32,184 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:38:32,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:38:32,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:38:32,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:38:32,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:38:32,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:38:32,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:38:32,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:38:32,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:38:32,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:38:32,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:38:32,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:38:32,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:38:32,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:38:32,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:38:32,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:38:32,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:38:32,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:38:32,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:38:32,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:38:32,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:38:32,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:38:32,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:38:32,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:38:32,191 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_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a44969557820fe98b70b9dc788f34c237275d3 [2021-10-13 00:38:32,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:38:32,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:38:32,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:38:32,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:38:32,488 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:38:32,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2021-10-13 00:38:32,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/data/64f49c231/a6bde993611f4200a5eb36c5b3c38e56/FLAGf8eb5b3cf [2021-10-13 00:38:33,114 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:38:33,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2021-10-13 00:38:33,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/data/64f49c231/a6bde993611f4200a5eb36c5b3c38e56/FLAGf8eb5b3cf [2021-10-13 00:38:33,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/data/64f49c231/a6bde993611f4200a5eb36c5b3c38e56 [2021-10-13 00:38:33,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:38:33,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:38:33,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:38:33,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:38:33,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:38:33,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:33" (1/1) ... [2021-10-13 00:38:33,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596ea839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:33, skipping insertion in model container [2021-10-13 00:38:33,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:33" (1/1) ... [2021-10-13 00:38:33,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:38:33,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:38:33,733 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_032f831f-3dba-48aa-b352-72178b51d293/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2021-10-13 00:38:33,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:38:33,910 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:38:33,970 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_032f831f-3dba-48aa-b352-72178b51d293/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2021-10-13 00:38:34,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:38:34,073 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:38:34,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34 WrapperNode [2021-10-13 00:38:34,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:38:34,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:38:34,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:38:34,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:38:34,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:38:34,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:38:34,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:38:34,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:38:34,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:38:34,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:38:34,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:38:34,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:38:34,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (1/1) ... [2021-10-13 00:38:34,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:38:34,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:34,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:34,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:38:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:38:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:38:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:38:34,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:38:35,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:38:35,677 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:38:35,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:35 BoogieIcfgContainer [2021-10-13 00:38:35,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:38:35,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:38:35,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:38:35,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:38:35,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:38:33" (1/3) ... [2021-10-13 00:38:35,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11936932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:38:35, skipping insertion in model container [2021-10-13 00:38:35,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:34" (2/3) ... [2021-10-13 00:38:35,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11936932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:38:35, skipping insertion in model container [2021-10-13 00:38:35,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:35" (3/3) ... [2021-10-13 00:38:35,690 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2021-10-13 00:38:35,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:38:35,701 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:38:35,756 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:38:35,762 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:38:35,763 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:38:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-10-13 00:38:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-13 00:38:35,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:35,797 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] [2021-10-13 00:38:35,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:35,803 INFO L82 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2021-10-13 00:38:35,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:35,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764442193] [2021-10-13 00:38:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:35,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:36,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:36,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764442193] [2021-10-13 00:38:36,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764442193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:36,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:36,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:38:36,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651023694] [2021-10-13 00:38:36,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:36,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:36,273 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-10-13 00:38:37,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:37,062 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-13 00:38:37,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2021-10-13 00:38:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:37,077 INFO L225 Difference]: With dead ends: 552 [2021-10-13 00:38:37,077 INFO L226 Difference]: Without dead ends: 282 [2021-10-13 00:38:37,081 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-13 00:38:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-13 00:38:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 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) [2021-10-13 00:38:37,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-10-13 00:38:37,135 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 63 [2021-10-13 00:38:37,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:37,136 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-10-13 00:38:37,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-10-13 00:38:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-10-13 00:38:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-10-13 00:38:37,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:37,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:37,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:38:37,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:37,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1562755460, now seen corresponding path program 1 times [2021-10-13 00:38:37,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:37,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924759123] [2021-10-13 00:38:37,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:37,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:37,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:37,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924759123] [2021-10-13 00:38:37,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924759123] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:37,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:37,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:38:37,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115268935] [2021-10-13 00:38:37,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:37,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:37,378 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-10-13 00:38:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:37,933 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-10-13 00:38:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2021-10-13 00:38:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:37,938 INFO L225 Difference]: With dead ends: 701 [2021-10-13 00:38:37,938 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 00:38:37,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 00:38:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 00:38:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 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) [2021-10-13 00:38:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2021-10-13 00:38:37,964 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 129 [2021-10-13 00:38:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:37,965 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2021-10-13 00:38:37,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-10-13 00:38:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2021-10-13 00:38:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-13 00:38:37,970 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:37,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:37,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:38:37,971 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:37,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1045343629, now seen corresponding path program 1 times [2021-10-13 00:38:37,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:37,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452831536] [2021-10-13 00:38:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:37,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:38,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:38,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452831536] [2021-10-13 00:38:38,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452831536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:38,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:38,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:38:38,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120301863] [2021-10-13 00:38:38,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:38,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:38,163 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2021-10-13 00:38:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:38,680 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2021-10-13 00:38:38,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:38,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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 136 [2021-10-13 00:38:38,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:38,686 INFO L225 Difference]: With dead ends: 979 [2021-10-13 00:38:38,687 INFO L226 Difference]: Without dead ends: 560 [2021-10-13 00:38:38,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-13 00:38:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-13 00:38:38,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 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) [2021-10-13 00:38:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2021-10-13 00:38:38,707 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 136 [2021-10-13 00:38:38,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:38,708 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2021-10-13 00:38:38,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2021-10-13 00:38:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2021-10-13 00:38:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-13 00:38:38,712 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:38,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:38,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:38:38,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:38,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:38,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1197108312, now seen corresponding path program 1 times [2021-10-13 00:38:38,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:38,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168792250] [2021-10-13 00:38:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:38,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:38,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:38,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168792250] [2021-10-13 00:38:38,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168792250] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:38,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:38,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:38:38,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143455716] [2021-10-13 00:38:38,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:38:38,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:38:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:38:38,939 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-10-13 00:38:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:39,453 INFO L93 Difference]: Finished difference Result 1034 states and 1254 transitions. [2021-10-13 00:38:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:38:39,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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 138 [2021-10-13 00:38:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:39,466 INFO L225 Difference]: With dead ends: 1034 [2021-10-13 00:38:39,466 INFO L226 Difference]: Without dead ends: 560 [2021-10-13 00:38:39,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.5ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:38:39,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-13 00:38:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-13 00:38:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2021466905187836) internal successors, (672), 559 states have internal predecessors, (672), 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) [2021-10-13 00:38:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 672 transitions. [2021-10-13 00:38:39,496 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 672 transitions. Word has length 138 [2021-10-13 00:38:39,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:39,497 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 672 transitions. [2021-10-13 00:38:39,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-10-13 00:38:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 672 transitions. [2021-10-13 00:38:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-10-13 00:38:39,500 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:39,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:39,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:38:39,501 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:39,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1693346688, now seen corresponding path program 1 times [2021-10-13 00:38:39,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:39,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298896315] [2021-10-13 00:38:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:39,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:39,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:39,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298896315] [2021-10-13 00:38:39,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298896315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:39,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:39,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:38:39,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512499871] [2021-10-13 00:38:39,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:39,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:39,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:39,620 INFO L87 Difference]: Start difference. First operand 560 states and 672 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-10-13 00:38:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:40,119 INFO L93 Difference]: Finished difference Result 1257 states and 1566 transitions. [2021-10-13 00:38:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2021-10-13 00:38:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:40,125 INFO L225 Difference]: With dead ends: 1257 [2021-10-13 00:38:40,125 INFO L226 Difference]: Without dead ends: 838 [2021-10-13 00:38:40,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-10-13 00:38:40,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2021-10-13 00:38:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.1995221027479093) internal successors, (1004), 837 states have internal predecessors, (1004), 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) [2021-10-13 00:38:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1004 transitions. [2021-10-13 00:38:40,149 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1004 transitions. Word has length 154 [2021-10-13 00:38:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:40,150 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1004 transitions. [2021-10-13 00:38:40,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-10-13 00:38:40,151 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1004 transitions. [2021-10-13 00:38:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-13 00:38:40,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:40,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:40,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:38:40,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:40,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1887789682, now seen corresponding path program 1 times [2021-10-13 00:38:40,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:40,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818268593] [2021-10-13 00:38:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:40,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:40,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:40,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818268593] [2021-10-13 00:38:40,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818268593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:40,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:40,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:38:40,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681135411] [2021-10-13 00:38:40,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:40,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:40,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:40,303 INFO L87 Difference]: Start difference. First operand 838 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-10-13 00:38:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:40,810 INFO L93 Difference]: Finished difference Result 1674 states and 2052 transitions. [2021-10-13 00:38:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:40,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 [2021-10-13 00:38:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:40,817 INFO L225 Difference]: With dead ends: 1674 [2021-10-13 00:38:40,817 INFO L226 Difference]: Without dead ends: 977 [2021-10-13 00:38:40,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:38:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-13 00:38:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-13 00:38:40,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1454918032786885) internal successors, (1118), 976 states have internal predecessors, (1118), 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) [2021-10-13 00:38:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1118 transitions. [2021-10-13 00:38:40,842 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1118 transitions. Word has length 174 [2021-10-13 00:38:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:40,843 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1118 transitions. [2021-10-13 00:38:40,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-10-13 00:38:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1118 transitions. [2021-10-13 00:38:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-10-13 00:38:40,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:40,847 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 00:38:40,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:38:40,848 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:40,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:40,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2078202414, now seen corresponding path program 1 times [2021-10-13 00:38:40,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:40,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852213014] [2021-10-13 00:38:40,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:40,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-10-13 00:38:41,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:41,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852213014] [2021-10-13 00:38:41,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852213014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:41,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556858049] [2021-10-13 00:38:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:41,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:41,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:41,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:41,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:38:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:41,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:38:41,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-10-13 00:38:41,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556858049] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:41,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:38:41,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-13 00:38:41,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88031340] [2021-10-13 00:38:41,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:41,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:41,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:41,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:38:41,952 INFO L87 Difference]: Start difference. First operand 977 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-10-13 00:38:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:42,461 INFO L93 Difference]: Finished difference Result 1535 states and 1759 transitions. [2021-10-13 00:38:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 247 [2021-10-13 00:38:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:42,470 INFO L225 Difference]: With dead ends: 1535 [2021-10-13 00:38:42,470 INFO L226 Difference]: Without dead ends: 1533 [2021-10-13 00:38:42,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:38:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-13 00:38:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1116. [2021-10-13 00:38:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1713004484304932) internal successors, (1306), 1115 states have internal predecessors, (1306), 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) [2021-10-13 00:38:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2021-10-13 00:38:42,502 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 247 [2021-10-13 00:38:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:42,503 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2021-10-13 00:38:42,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-10-13 00:38:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2021-10-13 00:38:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-10-13 00:38:42,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:42,510 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:42,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:42,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:42,732 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1601492366, now seen corresponding path program 1 times [2021-10-13 00:38:42,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:42,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966447910] [2021-10-13 00:38:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:42,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 79 proven. 42 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-13 00:38:42,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:43,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966447910] [2021-10-13 00:38:43,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966447910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:43,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964926537] [2021-10-13 00:38:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:43,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:43,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:43,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:43,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:38:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:43,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:38:43,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-13 00:38:43,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964926537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:43,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:38:43,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-13 00:38:43,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928907209] [2021-10-13 00:38:43,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:43,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:43,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:43,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:38:43,883 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-10-13 00:38:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:44,400 INFO L93 Difference]: Finished difference Result 2369 states and 2844 transitions. [2021-10-13 00:38:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 311 [2021-10-13 00:38:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:44,409 INFO L225 Difference]: With dead ends: 2369 [2021-10-13 00:38:44,409 INFO L226 Difference]: Without dead ends: 1394 [2021-10-13 00:38:44,411 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 49.3ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:38:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-13 00:38:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-13 00:38:44,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 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) [2021-10-13 00:38:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2021-10-13 00:38:44,445 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 311 [2021-10-13 00:38:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:44,446 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2021-10-13 00:38:44,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-10-13 00:38:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2021-10-13 00:38:44,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-10-13 00:38:44,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:44,455 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:44,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:44,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:44,668 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:38:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:44,669 INFO L82 PathProgramCache]: Analyzing trace with hash -554731653, now seen corresponding path program 1 times [2021-10-13 00:38:44,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:44,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202807317] [2021-10-13 00:38:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:44,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 86 proven. 96 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-13 00:38:44,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:44,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202807317] [2021-10-13 00:38:44,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202807317] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:44,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299254889] [2021-10-13 00:38:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:44,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:44,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:44,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:38:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:45,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:38:45,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-13 00:38:46,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299254889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:46,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:38:46,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 00:38:46,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010517381] [2021-10-13 00:38:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:38:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:38:46,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:38:46,050 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2021-10-13 00:38:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:46,561 INFO L93 Difference]: Finished difference Result 2645 states and 3076 transitions. [2021-10-13 00:38:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:38:46,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 362 [2021-10-13 00:38:46,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:46,563 INFO L225 Difference]: With dead ends: 2645 [2021-10-13 00:38:46,563 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:38:46,566 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:38:46,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:38:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:38:46,567 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) [2021-10-13 00:38:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:38:46,567 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-10-13 00:38:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:46,567 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:46,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2021-10-13 00:38:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:38:46,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:38:46,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:38:46,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:46,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-13 00:38:46,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:38:46,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:38:46,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:38:46,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:38:46,982 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,983 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 00:38:46,984 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,985 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 00:38:46,986 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,987 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 00:38:46,988 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,989 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 00:38:46,990 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 00:38:46,991 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,992 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 00:38:46,993 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 (<= 9 ~a19~0)) (and (<= ~a19~0 6) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 .cse1 (= ~a10~0 2) .cse2) (and (= ~a10~0 1) .cse1 .cse2))) [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,994 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,995 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,995 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 00:38:46,997 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 00:38:46,997 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 00:38:46,997 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 00:38:46,998 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:46,999 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 00:38:47,000 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,001 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 00:38:47,002 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 00:38:47,003 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:38:47,004 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 00:38:47,004 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 00:38:47,004 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 00:38:47,004 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 .cse1 .cse2 (<= 9 ~a19~0)) (and (<= ~a19~0 6) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 .cse1 (= ~a10~0 2) .cse2) (and (= ~a10~0 1) .cse1 .cse2))) [2021-10-13 00:38:47,004 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 00:38:47,004 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,005 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 00:38:47,006 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 00:38:47,007 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,008 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 00:38:47,009 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:38:47,010 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 00:38:47,010 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 00:38:47,014 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:38:47,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:38:47 BoogieIcfgContainer [2021-10-13 00:38:47,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:38:47,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:38:47,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:38:47,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:38:47,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:35" (3/4) ... [2021-10-13 00:38:47,048 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:38:47,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:38:47,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:38:47,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:38:47,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:38:47,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:38:47,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:38:47,228 INFO L168 Benchmark]: Toolchain (without parser) took 13806.18 ms. Allocated memory was 102.8 MB in the beginning and 239.1 MB in the end (delta: 136.3 MB). Free memory was 69.7 MB in the beginning and 109.1 MB in the end (delta: -39.3 MB). Peak memory consumption was 95.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,228 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:38:47,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.12 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 69.4 MB in the beginning and 94.7 MB in the end (delta: -25.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.32 ms. Allocated memory is still 136.3 MB. Free memory was 94.7 MB in the beginning and 86.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,230 INFO L168 Benchmark]: Boogie Preprocessor took 114.08 ms. Allocated memory is still 136.3 MB. Free memory was 86.3 MB in the beginning and 82.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,230 INFO L168 Benchmark]: RCFGBuilder took 1364.38 ms. Allocated memory is still 136.3 MB. Free memory was 81.4 MB in the beginning and 77.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,231 INFO L168 Benchmark]: TraceAbstraction took 11362.29 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 76.3 MB in the beginning and 123.8 MB in the end (delta: -47.5 MB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,231 INFO L168 Benchmark]: Witness Printer took 181.39 ms. Allocated memory is still 239.1 MB. Free memory was 123.8 MB in the beginning and 109.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:47,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 654.12 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 69.4 MB in the beginning and 94.7 MB in the end (delta: -25.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.32 ms. Allocated memory is still 136.3 MB. Free memory was 94.7 MB in the beginning and 86.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.08 ms. Allocated memory is still 136.3 MB. Free memory was 86.3 MB in the beginning and 82.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1364.38 ms. Allocated memory is still 136.3 MB. Free memory was 81.4 MB in the beginning and 77.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11362.29 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 76.3 MB in the beginning and 123.8 MB in the end (delta: -47.5 MB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. * Witness Printer took 181.39 ms. Allocated memory is still 239.1 MB. Free memory was 123.8 MB in the beginning and 109.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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: 203]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11260.3ms, OverallIterations: 9, TraceHistogramMax: 4, EmptinessCheckTime: 55.3ms, AutomataDifference: 5097.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 198.2ms, InitialAbstractionConstructionTime: 15.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1066 SDtfs, 857 SDslu, 51 SDs, 0 SdLazy, 3427 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3598.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 949 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 136.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 222.3ms AutomataMinimizationTime, 9 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 141 HoareAnnotationTreeSize, 3 FomulaSimplifications, 308 FormulaSimplificationTreeSizeReduction, 34.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 157.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 175.6ms SsaConstructionTime, 598.3ms SatisfiabilityAnalysisTime, 3542.5ms InterpolantComputationTime, 2634 NumberOfCodeBlocks, 2634 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2622 ConstructedInterpolants, 0 QuantifiedInterpolants, 11066 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1298 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 1834/2022 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: 592]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && 14 == a4) && a12 == 0) && 9 <= a19) || ((a19 <= 6 && 14 == a4) && a12 == 0)) || ((a10 == 0 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 4 <= a10) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && 14 == a4) && a12 == 0) && 9 <= a19) || ((a19 <= 6 && 14 == a4) && a12 == 0)) || ((a10 == 0 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 4 <= a10) && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:38:47,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032f831f-3dba-48aa-b352-72178b51d293/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...