./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label21.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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/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 d3804549b6c7e3708a3a10405378969e3630e9ce ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:01:48,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:01:48,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:01:48,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:01:48,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:01:48,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:01:48,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:01:48,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:01:48,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:01:48,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:01:48,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:01:48,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:01:48,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:01:48,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:01:48,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:01:48,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:01:48,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:01:48,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:01:48,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:01:48,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:01:48,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:01:48,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:01:48,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:01:48,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:01:48,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:01:48,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:01:48,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:01:48,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:01:48,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:01:48,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:01:48,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:01:48,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:01:48,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:01:48,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:01:48,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:01:48,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:01:48,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:01:48,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:01:48,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:01:48,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:01:48,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:01:48,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:01:48,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:01:48,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:01:48,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:01:48,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:01:48,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:01:48,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:01:48,385 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:01:48,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:01:48,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:01:48,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:01:48,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:01:48,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:01:48,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:01:48,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:01:48,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:01:48,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:01:48,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:01:48,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:01:48,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:01:48,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:01:48,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:01:48,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:01:48,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:01:48,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:01:48,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:01:48,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:01:48,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:01:48,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:01:48,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:01:48,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:01:48,392 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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3804549b6c7e3708a3a10405378969e3630e9ce [2021-10-13 00:01:48,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:01:48,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:01:48,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:01:48,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:01:48,689 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:01:48,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label21.c [2021-10-13 00:01:48,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/data/dc2bedce7/51d9b36dc4e1486a8ed0b17f876d659e/FLAG869e7e31e [2021-10-13 00:01:49,350 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:01:49,351 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/sv-benchmarks/c/eca-rers2012/Problem14_label21.c [2021-10-13 00:01:49,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/data/dc2bedce7/51d9b36dc4e1486a8ed0b17f876d659e/FLAG869e7e31e [2021-10-13 00:01:49,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/data/dc2bedce7/51d9b36dc4e1486a8ed0b17f876d659e [2021-10-13 00:01:49,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:01:49,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:01:49,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:49,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:01:49,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:01:49,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:49" (1/1) ... [2021-10-13 00:01:49,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ea727b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:49, skipping insertion in model container [2021-10-13 00:01:49,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:49" (1/1) ... [2021-10-13 00:01:49,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:01:49,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:01:49,962 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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/sv-benchmarks/c/eca-rers2012/Problem14_label21.c[3617,3630] [2021-10-13 00:01:50,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:50,219 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:01:50,252 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_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/sv-benchmarks/c/eca-rers2012/Problem14_label21.c[3617,3630] [2021-10-13 00:01:50,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:50,372 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:01:50,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50 WrapperNode [2021-10-13 00:01:50,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:50,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:50,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:01:50,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:01:50,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:50,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:01:50,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:01:50,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:01:50,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:01:50,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:01:50,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:01:50,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:01:50,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (1/1) ... [2021-10-13 00:01:50,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:01:50,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:50,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:50,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:01:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:01:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:01:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:01:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:01:52,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:01:52,086 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:01:52,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:52 BoogieIcfgContainer [2021-10-13 00:01:52,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:01:52,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:01:52,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:01:52,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:01:52,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:01:49" (1/3) ... [2021-10-13 00:01:52,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a3660f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:52, skipping insertion in model container [2021-10-13 00:01:52,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:50" (2/3) ... [2021-10-13 00:01:52,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a3660f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:01:52, skipping insertion in model container [2021-10-13 00:01:52,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:52" (3/3) ... [2021-10-13 00:01:52,100 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label21.c [2021-10-13 00:01:52,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:01:52,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:01:52,175 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:01:52,184 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 00:01:52,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:01:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 00:01:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 00:01:52,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:52,228 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] [2021-10-13 00:01:52,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:52,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2021-10-13 00:01:52,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:52,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740240098] [2021-10-13 00:01:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:52,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:52,480 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 00:01:52,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:52,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740240098] [2021-10-13 00:01:52,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740240098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:52,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:52,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:01:52,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807793730] [2021-10-13 00:01:52,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:01:52,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:52,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:52,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:52,515 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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 00:01:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:53,514 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-10-13 00:01:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:01:53,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2021-10-13 00:01:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:53,539 INFO L225 Difference]: With dead ends: 669 [2021-10-13 00:01:53,539 INFO L226 Difference]: Without dead ends: 360 [2021-10-13 00:01:53,543 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-13 00:01:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-13 00:01:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 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 00:01:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-10-13 00:01:53,600 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 34 [2021-10-13 00:01:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:53,600 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-10-13 00:01:53,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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 00:01:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-10-13 00:01:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-13 00:01:53,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:53,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:53,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:01:53,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:53,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1732143824, now seen corresponding path program 1 times [2021-10-13 00:01:53,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:53,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132081989] [2021-10-13 00:01:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:53,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:53,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:53,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132081989] [2021-10-13 00:01:53,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132081989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:53,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:53,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:01:53,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051149444] [2021-10-13 00:01:53,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:01:53,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:53,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:53,803 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 00:01:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:54,547 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2021-10-13 00:01:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:01:54,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2021-10-13 00:01:54,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:54,553 INFO L225 Difference]: With dead ends: 1076 [2021-10-13 00:01:54,554 INFO L226 Difference]: Without dead ends: 718 [2021-10-13 00:01:54,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-13 00:01:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2021-10-13 00:01:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.4223776223776223) internal successors, (1017), 715 states have internal predecessors, (1017), 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 00:01:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2021-10-13 00:01:54,612 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 99 [2021-10-13 00:01:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:54,612 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2021-10-13 00:01:54,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 00:01:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2021-10-13 00:01:54,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-13 00:01:54,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:54,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:54,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:01:54,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:54,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:54,637 INFO L82 PathProgramCache]: Analyzing trace with hash 22069033, now seen corresponding path program 1 times [2021-10-13 00:01:54,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:54,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100304417] [2021-10-13 00:01:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:54,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:54,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:54,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100304417] [2021-10-13 00:01:54,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100304417] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:54,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:54,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:01:54,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937722281] [2021-10-13 00:01:54,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:01:54,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:54,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:54,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:54,738 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 00:01:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:55,451 INFO L93 Difference]: Finished difference Result 1608 states and 2324 transitions. [2021-10-13 00:01:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:01:55,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 100 [2021-10-13 00:01:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:55,458 INFO L225 Difference]: With dead ends: 1608 [2021-10-13 00:01:55,458 INFO L226 Difference]: Without dead ends: 894 [2021-10-13 00:01:55,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-10-13 00:01:55,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-10-13 00:01:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3314669652855544) internal successors, (1189), 893 states have internal predecessors, (1189), 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 00:01:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1189 transitions. [2021-10-13 00:01:55,483 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1189 transitions. Word has length 100 [2021-10-13 00:01:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:55,483 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1189 transitions. [2021-10-13 00:01:55,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 00:01:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1189 transitions. [2021-10-13 00:01:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-13 00:01:55,485 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:55,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:55,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:01:55,486 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:55,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:55,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1642942022, now seen corresponding path program 1 times [2021-10-13 00:01:55,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:55,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444052154] [2021-10-13 00:01:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:55,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:55,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:55,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444052154] [2021-10-13 00:01:55,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444052154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:55,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:55,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:55,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302819447] [2021-10-13 00:01:55,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:01:55,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:01:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:55,662 INFO L87 Difference]: Start difference. First operand 894 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 00:01:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:56,582 INFO L93 Difference]: Finished difference Result 2144 states and 2782 transitions. [2021-10-13 00:01:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:01:56,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-10-13 00:01:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:56,589 INFO L225 Difference]: With dead ends: 2144 [2021-10-13 00:01:56,589 INFO L226 Difference]: Without dead ends: 1252 [2021-10-13 00:01:56,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:01:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-10-13 00:01:56,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2021-10-13 00:01:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.257005604483587) internal successors, (1570), 1249 states have internal predecessors, (1570), 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 00:01:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1570 transitions. [2021-10-13 00:01:56,633 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1570 transitions. Word has length 103 [2021-10-13 00:01:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:56,634 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1570 transitions. [2021-10-13 00:01:56,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 00:01:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1570 transitions. [2021-10-13 00:01:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-10-13 00:01:56,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:56,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:56,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:01:56,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:56,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1896681766, now seen corresponding path program 1 times [2021-10-13 00:01:56,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:56,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767378007] [2021-10-13 00:01:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:56,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:56,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:56,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767378007] [2021-10-13 00:01:56,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767378007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:56,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:56,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:56,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678995387] [2021-10-13 00:01:56,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:01:56,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:56,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:01:56,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:56,763 INFO L87 Difference]: Start difference. First operand 1250 states and 1570 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 00:01:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:57,497 INFO L93 Difference]: Finished difference Result 2885 states and 3573 transitions. [2021-10-13 00:01:57,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:01:57,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2021-10-13 00:01:57,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:57,510 INFO L225 Difference]: With dead ends: 2885 [2021-10-13 00:01:57,510 INFO L226 Difference]: Without dead ends: 1608 [2021-10-13 00:01:57,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-10-13 00:01:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2021-10-13 00:01:57,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1314641744548286) internal successors, (1816), 1605 states have internal predecessors, (1816), 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 00:01:57,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1816 transitions. [2021-10-13 00:01:57,564 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1816 transitions. Word has length 114 [2021-10-13 00:01:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:57,564 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1816 transitions. [2021-10-13 00:01:57,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 00:01:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1816 transitions. [2021-10-13 00:01:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-10-13 00:01:57,567 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:57,567 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:01:57,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:01:57,568 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:57,568 INFO L82 PathProgramCache]: Analyzing trace with hash 535573908, now seen corresponding path program 1 times [2021-10-13 00:01:57,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:57,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140258870] [2021-10-13 00:01:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:57,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:57,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:57,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140258870] [2021-10-13 00:01:57,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140258870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:57,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:57,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:57,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019193811] [2021-10-13 00:01:57,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:01:57,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:57,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:57,710 INFO L87 Difference]: Start difference. First operand 1606 states and 1816 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 00:01:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:58,328 INFO L93 Difference]: Finished difference Result 3922 states and 4494 transitions. [2021-10-13 00:01:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:01:58,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 208 [2021-10-13 00:01:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:58,341 INFO L225 Difference]: With dead ends: 3922 [2021-10-13 00:01:58,341 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 00:01:58,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 00:01:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-10-13 00:01:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1173445535296869) internal successors, (2390), 2139 states have internal predecessors, (2390), 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 00:01:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2390 transitions. [2021-10-13 00:01:58,405 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2390 transitions. Word has length 208 [2021-10-13 00:01:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:58,406 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2390 transitions. [2021-10-13 00:01:58,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 00:01:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2390 transitions. [2021-10-13 00:01:58,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-10-13 00:01:58,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:58,412 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:58,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:01:58,412 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:58,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1934153555, now seen corresponding path program 1 times [2021-10-13 00:01:58,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810419362] [2021-10-13 00:01:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-13 00:01:58,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:58,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810419362] [2021-10-13 00:01:58,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810419362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:58,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:58,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:58,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912456752] [2021-10-13 00:01:58,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:01:58,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:01:58,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:58,679 INFO L87 Difference]: Start difference. First operand 2140 states and 2390 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:59,334 INFO L93 Difference]: Finished difference Result 4336 states and 4860 transitions. [2021-10-13 00:01:59,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:01:59,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-10-13 00:01:59,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:59,347 INFO L225 Difference]: With dead ends: 4336 [2021-10-13 00:01:59,347 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 00:01:59,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 00:01:59,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-10-13 00:01:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.077606358111267) internal successors, (2305), 2139 states have internal predecessors, (2305), 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 00:01:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2305 transitions. [2021-10-13 00:01:59,426 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2305 transitions. Word has length 325 [2021-10-13 00:01:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:59,427 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2305 transitions. [2021-10-13 00:01:59,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2305 transitions. [2021-10-13 00:01:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-13 00:01:59,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:59,436 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:59,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:01:59,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:01:59,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:59,437 INFO L82 PathProgramCache]: Analyzing trace with hash -240102924, now seen corresponding path program 1 times [2021-10-13 00:01:59,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:59,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873285828] [2021-10-13 00:01:59,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:59,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:01:59,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:59,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873285828] [2021-10-13 00:01:59,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873285828] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:59,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:59,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:59,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5568120] [2021-10-13 00:01:59,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:01:59,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:59,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:59,625 INFO L87 Difference]: Start difference. First operand 2140 states and 2305 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 00:02:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:00,161 INFO L93 Difference]: Finished difference Result 4456 states and 4866 transitions. [2021-10-13 00:02:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 420 [2021-10-13 00:02:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:00,176 INFO L225 Difference]: With dead ends: 4456 [2021-10-13 00:02:00,176 INFO L226 Difference]: Without dead ends: 2496 [2021-10-13 00:02:00,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-13 00:02:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2021-10-13 00:02:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.0775114737378888) internal successors, (2113), 1961 states have internal predecessors, (2113), 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 00:02:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2113 transitions. [2021-10-13 00:02:00,228 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2113 transitions. Word has length 420 [2021-10-13 00:02:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:00,229 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2113 transitions. [2021-10-13 00:02:00,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 00:02:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2113 transitions. [2021-10-13 00:02:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-10-13 00:02:00,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:00,256 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:00,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:02:00,256 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:00,257 INFO L82 PathProgramCache]: Analyzing trace with hash 313193583, now seen corresponding path program 1 times [2021-10-13 00:02:00,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:00,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403001928] [2021-10-13 00:02:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:00,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:02:00,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:00,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403001928] [2021-10-13 00:02:00,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403001928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:00,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:00,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:00,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662217305] [2021-10-13 00:02:00,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:00,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:00,448 INFO L87 Difference]: Start difference. First operand 1962 states and 2113 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 00:02:00,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:00,994 INFO L93 Difference]: Finished difference Result 4456 states and 4867 transitions. [2021-10-13 00:02:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:00,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 427 [2021-10-13 00:02:00,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:01,009 INFO L225 Difference]: With dead ends: 4456 [2021-10-13 00:02:01,009 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 00:02:01,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 00:02:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-10-13 00:02:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0837675350701403) internal successors, (2704), 2495 states have internal predecessors, (2704), 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 00:02:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2704 transitions. [2021-10-13 00:02:01,074 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2704 transitions. Word has length 427 [2021-10-13 00:02:01,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:01,075 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2704 transitions. [2021-10-13 00:02:01,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 00:02:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2704 transitions. [2021-10-13 00:02:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-10-13 00:02:01,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:01,086 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:01,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:02:01,086 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1953493490, now seen corresponding path program 1 times [2021-10-13 00:02:01,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407715016] [2021-10-13 00:02:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 447 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:02:01,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:01,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407715016] [2021-10-13 00:02:01,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407715016] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:01,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:01,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:01,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330852552] [2021-10-13 00:02:01,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:01,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:01,314 INFO L87 Difference]: Start difference. First operand 2496 states and 2704 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 00:02:01,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:01,883 INFO L93 Difference]: Finished difference Result 5880 states and 6460 transitions. [2021-10-13 00:02:01,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:01,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 468 [2021-10-13 00:02:01,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:01,901 INFO L225 Difference]: With dead ends: 5880 [2021-10-13 00:02:01,902 INFO L226 Difference]: Without dead ends: 3564 [2021-10-13 00:02:01,905 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-13 00:02:01,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-10-13 00:02:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.079708111142296) internal successors, (3847), 3563 states have internal predecessors, (3847), 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 00:02:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3847 transitions. [2021-10-13 00:02:01,995 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3847 transitions. Word has length 468 [2021-10-13 00:02:01,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:01,996 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3847 transitions. [2021-10-13 00:02:01,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 00:02:01,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3847 transitions. [2021-10-13 00:02:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-10-13 00:02:02,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:02,009 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:02,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:02:02,010 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:02,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1407887867, now seen corresponding path program 1 times [2021-10-13 00:02:02,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:02,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338334711] [2021-10-13 00:02:02,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:02,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-10-13 00:02:02,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:02,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338334711] [2021-10-13 00:02:02,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338334711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:02,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:02,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:02:02,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862476331] [2021-10-13 00:02:02,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:02,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:02,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:02,252 INFO L87 Difference]: Start difference. First operand 3564 states and 3847 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 00:02:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:02,772 INFO L93 Difference]: Finished difference Result 7126 states and 7708 transitions. [2021-10-13 00:02:02,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:02,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 504 [2021-10-13 00:02:02,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:02,792 INFO L225 Difference]: With dead ends: 7126 [2021-10-13 00:02:02,793 INFO L226 Difference]: Without dead ends: 3742 [2021-10-13 00:02:02,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:02:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-13 00:02:02,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208. [2021-10-13 00:02:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0757717492984098) internal successors, (3450), 3207 states have internal predecessors, (3450), 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 00:02:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3450 transitions. [2021-10-13 00:02:02,876 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3450 transitions. Word has length 504 [2021-10-13 00:02:02,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:02,877 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3450 transitions. [2021-10-13 00:02:02,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 00:02:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3450 transitions. [2021-10-13 00:02:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2021-10-13 00:02:02,883 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:02,883 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-10-13 00:02:02,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:02:02,884 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:02,885 INFO L82 PathProgramCache]: Analyzing trace with hash -2137582567, now seen corresponding path program 1 times [2021-10-13 00:02:02,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:02,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588115994] [2021-10-13 00:02:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:02,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 802 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:02:03,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:03,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588115994] [2021-10-13 00:02:03,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588115994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:03,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769993542] [2021-10-13 00:02:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:03,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:03,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:03,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:02:03,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:02:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:03,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:03,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-10-13 00:02:04,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769993542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:04,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:02:04,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:02:04,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678208405] [2021-10-13 00:02:04,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:04,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:04,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:04,930 INFO L87 Difference]: Start difference. First operand 3208 states and 3450 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:05,472 INFO L93 Difference]: Finished difference Result 6948 states and 7489 transitions. [2021-10-13 00:02:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 623 [2021-10-13 00:02:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:05,501 INFO L225 Difference]: With dead ends: 6948 [2021-10-13 00:02:05,516 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 00:02:05,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 00:02:05,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-13 00:02:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0740091196071553) internal successors, (3062), 2851 states have internal predecessors, (3062), 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 00:02:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3062 transitions. [2021-10-13 00:02:05,608 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3062 transitions. Word has length 623 [2021-10-13 00:02:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:05,609 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3062 transitions. [2021-10-13 00:02:05,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3062 transitions. [2021-10-13 00:02:05,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2021-10-13 00:02:05,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:05,618 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 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 00:02:05,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:05,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:05,844 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:05,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:05,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1968814362, now seen corresponding path program 1 times [2021-10-13 00:02:05,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:05,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131767945] [2021-10-13 00:02:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:05,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 1214 proven. 155 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-10-13 00:02:06,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:06,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131767945] [2021-10-13 00:02:06,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131767945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:06,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330795318] [2021-10-13 00:02:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:06,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:06,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:02:06,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:02:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:06,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:06,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-10-13 00:02:08,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330795318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:08,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:02:08,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:02:08,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716256709] [2021-10-13 00:02:08,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:08,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:08,207 INFO L87 Difference]: Start difference. First operand 2852 states and 3062 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 00:02:08,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:08,711 INFO L93 Difference]: Finished difference Result 3210 states and 3435 transitions. [2021-10-13 00:02:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:08,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 770 [2021-10-13 00:02:08,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:08,740 INFO L225 Difference]: With dead ends: 3210 [2021-10-13 00:02:08,740 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 00:02:08,742 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:08,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 00:02:08,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2674. [2021-10-13 00:02:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0695847362514028) internal successors, (2859), 2673 states have internal predecessors, (2859), 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 00:02:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2859 transitions. [2021-10-13 00:02:08,823 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2859 transitions. Word has length 770 [2021-10-13 00:02:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:08,824 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2859 transitions. [2021-10-13 00:02:08,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 00:02:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2859 transitions. [2021-10-13 00:02:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2021-10-13 00:02:08,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:08,834 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 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 00:02:08,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:09,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:02:09,049 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:02:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1961672119, now seen corresponding path program 1 times [2021-10-13 00:02:09,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:09,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394015020] [2021-10-13 00:02:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:09,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 1244 proven. 155 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-10-13 00:02:09,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:09,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394015020] [2021-10-13 00:02:09,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394015020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:09,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655773132] [2021-10-13 00:02:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:09,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:09,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:09,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:02:09,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:02:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:10,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:10,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2021-10-13 00:02:11,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655773132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:11,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:02:11,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:02:11,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860902641] [2021-10-13 00:02:11,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:02:11,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:11,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:02:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:11,764 INFO L87 Difference]: Start difference. First operand 2674 states and 2859 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 00:02:12,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:12,289 INFO L93 Difference]: Finished difference Result 6412 states and 6926 transitions. [2021-10-13 00:02:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:02:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 776 [2021-10-13 00:02:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:12,291 INFO L225 Difference]: With dead ends: 6412 [2021-10-13 00:02:12,291 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:02:12,297 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:02:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:02:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:02:12,298 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 00:02:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:02:12,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 776 [2021-10-13 00:02:12,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:12,299 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:02:12,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 00:02:12,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:02:12,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:02:12,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:02:12,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:12,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 00:02:12,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:02:12,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:02:12,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:02:12,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,797 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 00:02:12,798 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 00:02:12,799 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 00:02:12,800 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 00:02:12,801 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 00:02:12,802 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 00:02:12,803 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,804 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,805 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,806 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,807 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 116) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 00:02:12,808 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,811 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 00:02:12,812 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 00:02:12,813 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,814 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 00:02:12,815 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 00:02:12,816 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 00:02:12,817 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 00:02:12,818 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,819 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 00:02:12,820 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 00:02:12,821 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 00:02:12,822 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 00:02:12,822 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 00:02:12,822 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 00:02:12,822 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,822 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,823 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse0 (= ~a24~0 1))) (or (and (<= 7 ~a15~0) .cse0) (and (<= (+ 49 ~a12~0) 0) .cse1) (and (<= ~a21~0 9) .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a12~0 11) (<= 9 ~a21~0) .cse0))) [2021-10-13 00:02:12,823 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 00:02:12,823 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 00:02:12,823 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 00:02:12,823 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 00:02:12,823 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,824 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 00:02:12,824 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 00:02:12,825 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 00:02:12,826 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,827 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 00:02:12,828 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,828 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 00:02:12,828 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 5)) (.cse0 (= ~a24~0 1))) (or (and (<= 7 ~a15~0) .cse0) (and (<= (+ 49 ~a12~0) 0) .cse1) (and (<= ~a21~0 9) .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a12~0 11) (<= 9 ~a21~0) .cse0))) [2021-10-13 00:02:12,828 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 00:02:12,828 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 00:02:12,828 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 00:02:12,829 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:02:12,830 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 00:02:12,834 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:02:12,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:02:12 BoogieIcfgContainer [2021-10-13 00:02:12,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:02:12,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:02:12,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:02:12,850 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:02:12,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:52" (3/4) ... [2021-10-13 00:02:12,853 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:02:12,875 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:02:12,877 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:02:12,878 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:02:12,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:02:13,002 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:02:13,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:02:13,004 INFO L168 Benchmark]: Toolchain (without parser) took 23362.38 ms. Allocated memory was 127.9 MB in the beginning and 312.5 MB in the end (delta: 184.5 MB). Free memory was 94.0 MB in the beginning and 169.4 MB in the end (delta: -75.4 MB). Peak memory consumption was 108.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,004 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 32.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:02:13,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.81 ms. Allocated memory is still 127.9 MB. Free memory was 93.7 MB in the beginning and 80.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.21 ms. Allocated memory is still 127.9 MB. Free memory was 80.6 MB in the beginning and 71.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,005 INFO L168 Benchmark]: Boogie Preprocessor took 146.74 ms. Allocated memory is still 127.9 MB. Free memory was 71.0 MB in the beginning and 96.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,006 INFO L168 Benchmark]: RCFGBuilder took 1459.33 ms. Allocated memory was 127.9 MB in the beginning and 167.8 MB in the end (delta: 39.8 MB). Free memory was 96.4 MB in the beginning and 118.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,006 INFO L168 Benchmark]: TraceAbstraction took 20757.97 ms. Allocated memory was 167.8 MB in the beginning and 312.5 MB in the end (delta: 144.7 MB). Free memory was 117.1 MB in the beginning and 188.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,007 INFO L168 Benchmark]: Witness Printer took 152.69 ms. Allocated memory is still 312.5 MB. Free memory was 188.3 MB in the beginning and 169.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:13,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 32.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 728.81 ms. Allocated memory is still 127.9 MB. Free memory was 93.7 MB in the beginning and 80.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.21 ms. Allocated memory is still 127.9 MB. Free memory was 80.6 MB in the beginning and 71.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 146.74 ms. Allocated memory is still 127.9 MB. Free memory was 71.0 MB in the beginning and 96.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1459.33 ms. Allocated memory was 127.9 MB in the beginning and 167.8 MB in the end (delta: 39.8 MB). Free memory was 96.4 MB in the beginning and 118.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20757.97 ms. Allocated memory was 167.8 MB in the beginning and 312.5 MB in the end (delta: 144.7 MB). Free memory was 117.1 MB in the beginning and 188.3 MB in the end (delta: -71.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 16.1 GB. * Witness Printer took 152.69 ms. Allocated memory is still 312.5 MB. Free memory was 188.3 MB in the beginning and 169.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 116]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20661.0ms, OverallIterations: 14, TraceHistogramMax: 7, EmptinessCheckTime: 118.2ms, AutomataDifference: 9436.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 271.4ms, InitialAbstractionConstructionTime: 21.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1709 SDtfs, 2098 SDslu, 78 SDs, 0 SdLazy, 7180 SolverSat, 957 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6717.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2209 GetRequests, 2185 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 82.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3564occurred in iteration=10, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 799.0ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2498 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 63 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1942 FormulaSimplificationTreeSizeReduction, 88.0ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 516 FormulaSimplificationTreeSizeReductionInter, 176.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 299.1ms SsaConstructionTime, 1034.4ms SatisfiabilityAnalysisTime, 6807.0ms InterpolantComputationTime, 7140 NumberOfCodeBlocks, 7140 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7123 ConstructedInterpolants, 0 QuantifiedInterpolants, 15258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2762 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 12598/13018 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: 30]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (49 + a12 <= 0 && a15 <= 5)) || ((a21 <= 9 && a24 == 1) && 0 < a12 + 43)) || (a24 == 1 && a15 <= 5)) || ((a12 <= 11 && 9 <= a21) && a24 == 1) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (49 + a12 <= 0 && a15 <= 5)) || ((a21 <= 9 && a24 == 1) && 0 < a12 + 43)) || (a24 == 1 && a15 <= 5)) || ((a12 <= 11 && 9 <= a21) && a24 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:02:13,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5054cc-3d01-47aa-97bb-82b17d9cd12b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...