./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/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 3e3b23830164ac928865389816d61d6dc5db2013 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:51:07,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:51:07,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:51:07,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:51:07,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:51:07,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:51:07,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:51:07,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:51:07,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:51:07,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:51:07,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:51:07,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:51:07,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:51:07,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:51:07,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:51:07,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:51:07,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:51:07,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:51:07,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:51:07,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:51:07,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:51:07,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:51:07,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:51:07,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:51:07,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:51:07,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:51:07,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:51:07,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:51:07,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:51:07,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:51:07,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:51:07,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:51:07,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:51:07,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:51:07,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:51:07,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:51:07,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:51:07,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:51:07,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:51:07,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:51:07,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:51:07,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:51:07,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:51:07,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:51:07,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:51:07,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:51:07,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:51:07,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:51:07,741 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:51:07,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:51:07,742 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:51:07,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:51:07,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:51:07,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:51:07,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:51:07,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:51:07,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:51:07,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:51:07,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:51:07,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:51:07,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:51:07,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:51:07,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:51:07,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:51:07,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:51:07,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:51:07,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:51:07,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:51:07,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:51:07,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:51:07,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:51:07,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:51:07,761 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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e3b23830164ac928865389816d61d6dc5db2013 [2021-10-13 00:51:08,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:51:08,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:51:08,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:51:08,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:51:08,116 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:51:08,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2021-10-13 00:51:08,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/data/627610389/ba71573e7cd1407b8bae598ecb6d3955/FLAG4d913374b [2021-10-13 00:51:08,975 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:51:08,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2021-10-13 00:51:09,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/data/627610389/ba71573e7cd1407b8bae598ecb6d3955/FLAG4d913374b [2021-10-13 00:51:09,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/data/627610389/ba71573e7cd1407b8bae598ecb6d3955 [2021-10-13 00:51:09,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:51:09,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:51:09,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:51:09,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:51:09,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:51:09,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:51:09" (1/1) ... [2021-10-13 00:51:09,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2565533a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:09, skipping insertion in model container [2021-10-13 00:51:09,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:51:09" (1/1) ... [2021-10-13 00:51:09,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:51:09,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:51:09,522 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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2021-10-13 00:51:09,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:51:09,802 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:51:09,851 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_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2021-10-13 00:51:09,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:51:10,001 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:51:10,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10 WrapperNode [2021-10-13 00:51:10,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:51:10,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:51:10,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:51:10,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:51:10,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:51:10,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:51:10,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:51:10,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:51:10,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:51:10,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:51:10,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:51:10,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:51:10,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (1/1) ... [2021-10-13 00:51:10,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:51:10,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:10,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:51:10,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:51:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:51:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:51:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:51:10,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:51:12,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:51:12,372 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:51:12,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:51:12 BoogieIcfgContainer [2021-10-13 00:51:12,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:51:12,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:51:12,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:51:12,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:51:12,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:51:09" (1/3) ... [2021-10-13 00:51:12,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1f726b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:51:12, skipping insertion in model container [2021-10-13 00:51:12,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:10" (2/3) ... [2021-10-13 00:51:12,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1f726b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:51:12, skipping insertion in model container [2021-10-13 00:51:12,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:51:12" (3/3) ... [2021-10-13 00:51:12,388 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2021-10-13 00:51:12,395 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:51:12,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:51:12,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:51:12,490 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 00:51:12,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:51:12,523 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 00:51:12,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 00:51:12,537 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:12,538 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:51:12,539 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:12,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:12,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2021-10-13 00:51:12,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:12,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796409710] [2021-10-13 00:51:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:12,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:12,943 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 00:51:12,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:12,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796409710] [2021-10-13 00:51:12,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796409710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:12,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:12,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:51:12,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208837097] [2021-10-13 00:51:12,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:12,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:12,981 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 00:51:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:14,301 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-10-13 00:51:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:14,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-10-13 00:51:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:14,333 INFO L225 Difference]: With dead ends: 669 [2021-10-13 00:51:14,335 INFO L226 Difference]: Without dead ends: 360 [2021-10-13 00:51:14,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-13 00:51:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-13 00:51:14,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 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 00:51:14,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-10-13 00:51:14,433 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 51 [2021-10-13 00:51:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:14,434 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-10-13 00:51:14,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 00:51:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-10-13 00:51:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-13 00:51:14,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:14,443 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:14,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:51:14,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:14,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:14,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1080800965, now seen corresponding path program 1 times [2021-10-13 00:51:14,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:14,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377248577] [2021-10-13 00:51:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:14,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:51:14,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:14,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377248577] [2021-10-13 00:51:14,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377248577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:14,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:14,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:51:14,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813084973] [2021-10-13 00:51:14,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:14,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:14,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:14,641 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 00:51:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:15,605 INFO L93 Difference]: Finished difference Result 1076 states and 1634 transitions. [2021-10-13 00:51:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:15,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 126 [2021-10-13 00:51:15,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:15,614 INFO L225 Difference]: With dead ends: 1076 [2021-10-13 00:51:15,614 INFO L226 Difference]: Without dead ends: 718 [2021-10-13 00:51:15,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:15,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-13 00:51:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2021-10-13 00:51:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.3552447552447553) internal successors, (969), 715 states have internal predecessors, (969), 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 00:51:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 969 transitions. [2021-10-13 00:51:15,686 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 969 transitions. Word has length 126 [2021-10-13 00:51:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:15,687 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 969 transitions. [2021-10-13 00:51:15,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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 00:51:15,687 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 969 transitions. [2021-10-13 00:51:15,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-13 00:51:15,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:15,693 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:15,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:51:15,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:15,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:15,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1002073487, now seen corresponding path program 1 times [2021-10-13 00:51:15,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:15,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472329367] [2021-10-13 00:51:15,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:15,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:15,941 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:51:15,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:15,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472329367] [2021-10-13 00:51:15,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472329367] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:15,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:15,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:15,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170034069] [2021-10-13 00:51:15,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:51:15,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:15,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:51:15,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:15,955 INFO L87 Difference]: Start difference. First operand 716 states and 969 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 00:51:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:17,299 INFO L93 Difference]: Finished difference Result 1966 states and 2575 transitions. [2021-10-13 00:51:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:51:17,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2021-10-13 00:51:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:17,310 INFO L225 Difference]: With dead ends: 1966 [2021-10-13 00:51:17,310 INFO L226 Difference]: Without dead ends: 1252 [2021-10-13 00:51:17,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:51:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-10-13 00:51:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2021-10-13 00:51:17,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2377902321857486) internal successors, (1546), 1249 states have internal predecessors, (1546), 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 00:51:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1546 transitions. [2021-10-13 00:51:17,359 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1546 transitions. Word has length 130 [2021-10-13 00:51:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:17,360 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1546 transitions. [2021-10-13 00:51:17,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 00:51:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1546 transitions. [2021-10-13 00:51:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-13 00:51:17,369 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:17,369 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:51:17,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:51:17,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:17,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:17,371 INFO L82 PathProgramCache]: Analyzing trace with hash 313256988, now seen corresponding path program 1 times [2021-10-13 00:51:17,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:17,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982214673] [2021-10-13 00:51:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:17,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 00:51:17,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:17,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982214673] [2021-10-13 00:51:17,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982214673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:17,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:17,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:17,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205264444] [2021-10-13 00:51:17,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:51:17,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:17,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:51:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:17,551 INFO L87 Difference]: Start difference. First operand 1250 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 00:51:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:18,553 INFO L93 Difference]: Finished difference Result 2707 states and 3359 transitions. [2021-10-13 00:51:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:51:18,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 210 [2021-10-13 00:51:18,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:18,565 INFO L225 Difference]: With dead ends: 2707 [2021-10-13 00:51:18,566 INFO L226 Difference]: Without dead ends: 1608 [2021-10-13 00:51:18,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-10-13 00:51:18,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2021-10-13 00:51:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.12398753894081) internal successors, (1804), 1605 states have internal predecessors, (1804), 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 00:51:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1804 transitions. [2021-10-13 00:51:18,625 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1804 transitions. Word has length 210 [2021-10-13 00:51:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:18,626 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1804 transitions. [2021-10-13 00:51:18,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 00:51:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1804 transitions. [2021-10-13 00:51:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-10-13 00:51:18,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:18,634 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:51:18,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:51:18,635 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:18,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:18,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1682054282, now seen corresponding path program 1 times [2021-10-13 00:51:18,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:18,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525419311] [2021-10-13 00:51:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:18,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:18,931 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 194 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 00:51:18,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:18,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525419311] [2021-10-13 00:51:18,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525419311] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:18,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232855473] [2021-10-13 00:51:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:18,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:18,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:18,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:18,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:51:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:19,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:51:19,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-10-13 00:51:20,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232855473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:20,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:20,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 00:51:20,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367953066] [2021-10-13 00:51:20,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:20,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:20,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:20,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:51:20,682 INFO L87 Difference]: Start difference. First operand 1606 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 00:51:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:21,529 INFO L93 Difference]: Finished difference Result 3388 states and 3907 transitions. [2021-10-13 00:51:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:21,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 337 [2021-10-13 00:51:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:21,554 INFO L225 Difference]: With dead ends: 3388 [2021-10-13 00:51:21,554 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 00:51:21,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:51:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 00:51:21,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-10-13 00:51:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.122386537480877) internal successors, (2201), 1961 states have internal predecessors, (2201), 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 00:51:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2201 transitions. [2021-10-13 00:51:21,628 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2201 transitions. Word has length 337 [2021-10-13 00:51:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:21,630 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2201 transitions. [2021-10-13 00:51:21,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 00:51:21,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2201 transitions. [2021-10-13 00:51:21,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-10-13 00:51:21,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:21,638 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:51:21,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:21,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:21,865 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:21,865 INFO L82 PathProgramCache]: Analyzing trace with hash 514746580, now seen corresponding path program 1 times [2021-10-13 00:51:21,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:21,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101405727] [2021-10-13 00:51:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:21,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:22,143 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-13 00:51:22,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:22,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101405727] [2021-10-13 00:51:22,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101405727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:22,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:22,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:22,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933816414] [2021-10-13 00:51:22,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:22,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:22,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:22,151 INFO L87 Difference]: Start difference. First operand 1962 states and 2201 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 00:51:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:22,897 INFO L93 Difference]: Finished difference Result 4100 states and 4648 transitions. [2021-10-13 00:51:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:22,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 341 [2021-10-13 00:51:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:22,915 INFO L225 Difference]: With dead ends: 4100 [2021-10-13 00:51:22,915 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 00:51:22,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 00:51:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-10-13 00:51:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1204143288735433) internal successors, (2596), 2317 states have internal predecessors, (2596), 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 00:51:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2596 transitions. [2021-10-13 00:51:22,994 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2596 transitions. Word has length 341 [2021-10-13 00:51:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:22,995 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2596 transitions. [2021-10-13 00:51:22,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 00:51:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2596 transitions. [2021-10-13 00:51:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-10-13 00:51:23,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:23,005 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:51:23,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:51:23,005 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:23,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:23,006 INFO L82 PathProgramCache]: Analyzing trace with hash -591060880, now seen corresponding path program 1 times [2021-10-13 00:51:23,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:23,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424686255] [2021-10-13 00:51:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:23,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-13 00:51:23,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:23,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424686255] [2021-10-13 00:51:23,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424686255] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:23,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805680602] [2021-10-13 00:51:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:23,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:23,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:23,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:23,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:51:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:23,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:51:23,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-10-13 00:51:24,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805680602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:24,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:24,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-13 00:51:24,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664406489] [2021-10-13 00:51:24,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:24,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:51:24,948 INFO L87 Difference]: Start difference. First operand 2318 states and 2596 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 00:51:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:25,669 INFO L93 Difference]: Finished difference Result 2854 states and 3202 transitions. [2021-10-13 00:51:25,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:25,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 368 [2021-10-13 00:51:25,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:25,690 INFO L225 Difference]: With dead ends: 2854 [2021-10-13 00:51:25,691 INFO L226 Difference]: Without dead ends: 2852 [2021-10-13 00:51:25,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:51:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-13 00:51:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2021-10-13 00:51:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1254509018036072) internal successors, (2808), 2495 states have internal predecessors, (2808), 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 00:51:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2808 transitions. [2021-10-13 00:51:25,775 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2808 transitions. Word has length 368 [2021-10-13 00:51:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:25,776 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2808 transitions. [2021-10-13 00:51:25,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 00:51:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2808 transitions. [2021-10-13 00:51:25,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-10-13 00:51:25,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:25,788 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, 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, 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, 1] [2021-10-13 00:51:25,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:26,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:26,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:26,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:26,017 INFO L82 PathProgramCache]: Analyzing trace with hash 262542689, now seen corresponding path program 1 times [2021-10-13 00:51:26,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:26,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948713494] [2021-10-13 00:51:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:26,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-10-13 00:51:26,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:26,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948713494] [2021-10-13 00:51:26,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948713494] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:26,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:26,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:26,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711394460] [2021-10-13 00:51:26,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:51:26,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:51:26,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:26,360 INFO L87 Difference]: Start difference. First operand 2496 states and 2808 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 00:51:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:27,209 INFO L93 Difference]: Finished difference Result 5048 states and 5689 transitions. [2021-10-13 00:51:27,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:51:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 421 [2021-10-13 00:51:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:27,227 INFO L225 Difference]: With dead ends: 5048 [2021-10-13 00:51:27,227 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 00:51:27,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 00:51:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-10-13 00:51:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0849699398797594) internal successors, (2707), 2495 states have internal predecessors, (2707), 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 00:51:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2707 transitions. [2021-10-13 00:51:27,311 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2707 transitions. Word has length 421 [2021-10-13 00:51:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:27,315 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2707 transitions. [2021-10-13 00:51:27,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 00:51:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2707 transitions. [2021-10-13 00:51:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-10-13 00:51:27,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:27,331 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, 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, 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 00:51:27,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:51:27,331 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:27,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1515068160, now seen corresponding path program 2 times [2021-10-13 00:51:27,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:27,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61399241] [2021-10-13 00:51:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:27,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:51:27,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:27,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61399241] [2021-10-13 00:51:27,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61399241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:27,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865898132] [2021-10-13 00:51:27,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:51:27,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:27,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:27,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:27,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:51:28,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:51:28,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:51:28,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:51:28,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:51:30,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865898132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:30,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:30,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-13 00:51:30,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20638218] [2021-10-13 00:51:30,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:51:30,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:30,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:51:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:51:30,594 INFO L87 Difference]: Start difference. First operand 2496 states and 2707 transitions. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 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 00:51:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:31,649 INFO L93 Difference]: Finished difference Result 5938 states and 6502 transitions. [2021-10-13 00:51:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:51:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 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 447 [2021-10-13 00:51:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:31,673 INFO L225 Difference]: With dead ends: 5938 [2021-10-13 00:51:31,674 INFO L226 Difference]: Without dead ends: 3622 [2021-10-13 00:51:31,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:51:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-10-13 00:51:31,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3030. [2021-10-13 00:51:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0746120831957742) internal successors, (3255), 3029 states have internal predecessors, (3255), 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 00:51:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3255 transitions. [2021-10-13 00:51:31,814 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3255 transitions. Word has length 447 [2021-10-13 00:51:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:31,816 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3255 transitions. [2021-10-13 00:51:31,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 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 00:51:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3255 transitions. [2021-10-13 00:51:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-10-13 00:51:31,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:31,824 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, 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, 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 00:51:31,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:32,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:32,049 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:32,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:32,049 INFO L82 PathProgramCache]: Analyzing trace with hash 284431623, now seen corresponding path program 1 times [2021-10-13 00:51:32,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:32,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385543060] [2021-10-13 00:51:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:32,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:51:32,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:32,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385543060] [2021-10-13 00:51:32,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385543060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:32,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:32,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:32,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645737150] [2021-10-13 00:51:32,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:32,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:32,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:32,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:32,314 INFO L87 Difference]: Start difference. First operand 3030 states and 3255 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 00:51:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:32,968 INFO L93 Difference]: Finished difference Result 6414 states and 6969 transitions. [2021-10-13 00:51:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:32,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 454 [2021-10-13 00:51:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:32,989 INFO L225 Difference]: With dead ends: 6414 [2021-10-13 00:51:32,990 INFO L226 Difference]: Without dead ends: 3564 [2021-10-13 00:51:32,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:33,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-13 00:51:33,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-10-13 00:51:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 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 00:51:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2021-10-13 00:51:33,134 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 454 [2021-10-13 00:51:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:33,135 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2021-10-13 00:51:33,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 00:51:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2021-10-13 00:51:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-10-13 00:51:33,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:33,142 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:33,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:51:33,143 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:33,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1246091326, now seen corresponding path program 1 times [2021-10-13 00:51:33,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:33,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000662701] [2021-10-13 00:51:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:33,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 00:51:33,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:33,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000662701] [2021-10-13 00:51:33,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000662701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:33,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369465112] [2021-10-13 00:51:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:33,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:33,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:33,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:33,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:51:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:34,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:51:34,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-10-13 00:51:35,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369465112] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:35,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:35,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:51:35,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479955342] [2021-10-13 00:51:35,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:35,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:35,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:35,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:51:35,672 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 00:51:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:36,311 INFO L93 Difference]: Finished difference Result 4100 states and 4406 transitions. [2021-10-13 00:51:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 499 [2021-10-13 00:51:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:36,338 INFO L225 Difference]: With dead ends: 4100 [2021-10-13 00:51:36,338 INFO L226 Difference]: Without dead ends: 4098 [2021-10-13 00:51:36,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:51:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-13 00:51:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3208. [2021-10-13 00:51:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 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 00:51:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2021-10-13 00:51:36,488 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 499 [2021-10-13 00:51:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:36,490 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2021-10-13 00:51:36,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 00:51:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2021-10-13 00:51:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2021-10-13 00:51:36,500 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:36,500 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-10-13 00:51:36,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:36,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:36,717 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:36,717 INFO L82 PathProgramCache]: Analyzing trace with hash 324332960, now seen corresponding path program 1 times [2021-10-13 00:51:36,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:36,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903683917] [2021-10-13 00:51:36,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:36,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 924 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-13 00:51:37,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:37,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903683917] [2021-10-13 00:51:37,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903683917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:37,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670694349] [2021-10-13 00:51:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:37,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:37,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:37,125 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:37,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 00:51:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:38,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:51:38,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-10-13 00:51:39,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670694349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:39,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:39,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:51:39,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665939741] [2021-10-13 00:51:39,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:39,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:51:39,917 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 00:51:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:40,552 INFO L93 Difference]: Finished difference Result 7126 states and 7763 transitions. [2021-10-13 00:51:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:40,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 641 [2021-10-13 00:51:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:40,576 INFO L225 Difference]: With dead ends: 7126 [2021-10-13 00:51:40,576 INFO L226 Difference]: Without dead ends: 4276 [2021-10-13 00:51:40,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:51:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-13 00:51:40,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-10-13 00:51:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0778618501342445) internal successors, (4416), 4097 states have internal predecessors, (4416), 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 00:51:40,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4416 transitions. [2021-10-13 00:51:40,674 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4416 transitions. Word has length 641 [2021-10-13 00:51:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:40,675 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4416 transitions. [2021-10-13 00:51:40,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 00:51:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4416 transitions. [2021-10-13 00:51:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2021-10-13 00:51:40,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:40,688 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, 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, 4, 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, 1, 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 00:51:40,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:40,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:40,917 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:40,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:40,917 INFO L82 PathProgramCache]: Analyzing trace with hash -316771125, now seen corresponding path program 1 times [2021-10-13 00:51:40,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:40,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741190110] [2021-10-13 00:51:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:40,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 1005 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-13 00:51:41,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:41,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741190110] [2021-10-13 00:51:41,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741190110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:41,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286868618] [2021-10-13 00:51:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:41,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:41,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:41,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:41,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 00:51:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:42,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:51:42,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-10-13 00:51:47,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286868618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:47,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:47,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:51:47,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541383421] [2021-10-13 00:51:47,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:51:47,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:47,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:51:47,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:51:47,975 INFO L87 Difference]: Start difference. First operand 4098 states and 4416 transitions. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 00:51:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:48,663 INFO L93 Difference]: Finished difference Result 8103 states and 8747 transitions. [2021-10-13 00:51:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:51:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 671 [2021-10-13 00:51:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:48,678 INFO L225 Difference]: With dead ends: 8103 [2021-10-13 00:51:48,679 INFO L226 Difference]: Without dead ends: 4363 [2021-10-13 00:51:48,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:51:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2021-10-13 00:51:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 4098. [2021-10-13 00:51:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.070539419087137) internal successors, (4386), 4097 states have internal predecessors, (4386), 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 00:51:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4386 transitions. [2021-10-13 00:51:48,779 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4386 transitions. Word has length 671 [2021-10-13 00:51:48,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:48,780 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4386 transitions. [2021-10-13 00:51:48,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 3 states have internal predecessors, (387), 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 00:51:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4386 transitions. [2021-10-13 00:51:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2021-10-13 00:51:48,792 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:48,793 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:51:48,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:49,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:51:49,013 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash -590297812, now seen corresponding path program 1 times [2021-10-13 00:51:49,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:49,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303054321] [2021-10-13 00:51:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:49,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 873 proven. 93 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 00:51:49,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:49,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303054321] [2021-10-13 00:51:49,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303054321] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:49,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435782889] [2021-10-13 00:51:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:49,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:49,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:49,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:49,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 00:51:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:50,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:51:50,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 00:51:52,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435782889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:52,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:51:52,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 00:51:52,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009204740] [2021-10-13 00:51:52,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:52,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:52,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:52,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:51:52,628 INFO L87 Difference]: Start difference. First operand 4098 states and 4386 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 00:51:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:53,300 INFO L93 Difference]: Finished difference Result 8550 states and 9211 transitions. [2021-10-13 00:51:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:53,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 675 [2021-10-13 00:51:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:53,314 INFO L225 Difference]: With dead ends: 8550 [2021-10-13 00:51:53,314 INFO L226 Difference]: Without dead ends: 4810 [2021-10-13 00:51:53,319 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:51:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-13 00:51:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-10-13 00:51:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0663339571636514) internal successors, (5128), 4809 states have internal predecessors, (5128), 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 00:51:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5128 transitions. [2021-10-13 00:51:53,418 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5128 transitions. Word has length 675 [2021-10-13 00:51:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:53,448 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5128 transitions. [2021-10-13 00:51:53,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 00:51:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5128 transitions. [2021-10-13 00:51:53,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2021-10-13 00:51:53,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:53,463 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:51:53,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:51:53,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 00:51:53,689 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:53,689 INFO L82 PathProgramCache]: Analyzing trace with hash 166928768, now seen corresponding path program 1 times [2021-10-13 00:51:53,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:53,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130720080] [2021-10-13 00:51:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:53,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 1397 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-10-13 00:51:54,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:54,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130720080] [2021-10-13 00:51:54,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130720080] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:51:54,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:51:54,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:51:54,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417623218] [2021-10-13 00:51:54,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:51:54,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:54,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:51:54,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:54,035 INFO L87 Difference]: Start difference. First operand 4810 states and 5128 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 00:51:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:51:54,723 INFO L93 Difference]: Finished difference Result 9440 states and 10075 transitions. [2021-10-13 00:51:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:51:54,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 797 [2021-10-13 00:51:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:51:54,745 INFO L225 Difference]: With dead ends: 9440 [2021-10-13 00:51:54,745 INFO L226 Difference]: Without dead ends: 4810 [2021-10-13 00:51:54,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:51:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-13 00:51:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4276. [2021-10-13 00:51:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.070643274853801) internal successors, (4577), 4275 states have internal predecessors, (4577), 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 00:51:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4577 transitions. [2021-10-13 00:51:54,861 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4577 transitions. Word has length 797 [2021-10-13 00:51:54,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:51:54,862 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4577 transitions. [2021-10-13 00:51:54,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 00:51:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4577 transitions. [2021-10-13 00:51:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2021-10-13 00:51:54,881 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:51:54,882 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, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 00:51:54,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 00:51:54,883 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:51:54,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:51:54,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1386667544, now seen corresponding path program 1 times [2021-10-13 00:51:54,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:51:54,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247478253] [2021-10-13 00:51:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:54,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:51:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 00:51:55,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:51:55,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247478253] [2021-10-13 00:51:55,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247478253] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:55,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467205407] [2021-10-13 00:51:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:51:55,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:51:55,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:51:55,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:51:55,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 00:51:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:51:57,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:51:57,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:51:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-13 00:51:59,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467205407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:51:59,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:51:59,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:51:59,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134574565] [2021-10-13 00:51:59,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:51:59,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:51:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:51:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:51:59,480 INFO L87 Difference]: Start difference. First operand 4276 states and 4577 transitions. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 00:52:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:52:00,408 INFO L93 Difference]: Finished difference Result 9440 states and 10123 transitions. [2021-10-13 00:52:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:52:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 830 [2021-10-13 00:52:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:52:00,422 INFO L225 Difference]: With dead ends: 9440 [2021-10-13 00:52:00,422 INFO L226 Difference]: Without dead ends: 5344 [2021-10-13 00:52:00,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:52:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-13 00:52:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2021-10-13 00:52:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.068979346300381) internal successors, (5331), 4987 states have internal predecessors, (5331), 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 00:52:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5331 transitions. [2021-10-13 00:52:00,542 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5331 transitions. Word has length 830 [2021-10-13 00:52:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:52:00,544 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5331 transitions. [2021-10-13 00:52:00,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 00:52:00,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5331 transitions. [2021-10-13 00:52:00,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2021-10-13 00:52:00,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:52:00,566 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:52:00,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:52:00,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 00:52:00,793 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:52:00,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:52:00,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1338545778, now seen corresponding path program 1 times [2021-10-13 00:52:00,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:52:00,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460653718] [2021-10-13 00:52:00,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:52:00,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:52:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:52:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2021-10-13 00:52:01,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:52:01,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460653718] [2021-10-13 00:52:01,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460653718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:52:01,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:52:01,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:52:01,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016054229] [2021-10-13 00:52:01,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:52:01,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:52:01,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:52:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:52:01,168 INFO L87 Difference]: Start difference. First operand 4988 states and 5331 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 00:52:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:52:01,907 INFO L93 Difference]: Finished difference Result 10150 states and 10845 transitions. [2021-10-13 00:52:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:52:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 881 [2021-10-13 00:52:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:52:01,909 INFO L225 Difference]: With dead ends: 10150 [2021-10-13 00:52:01,909 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:52:01,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:52:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:52:01,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:52:01,919 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 00:52:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:52:01,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 881 [2021-10-13 00:52:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:52:01,920 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:52:01,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 00:52:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:52:01,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:52:01,923 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:52:01,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 00:52:01,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:52:01,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:52:02,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:52:02,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,296 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 00:52:02,297 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 00:52:02,298 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 00:52:02,299 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 00:52:02,300 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 00:52:02,301 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 00:52:02,302 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,303 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,304 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 00:52:02,305 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 00:52:02,306 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 00:52:02,307 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 00:52:02,308 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 00:52:02,308 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 00:52:02,308 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,308 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,308 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,311 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 00:52:02,311 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 00:52:02,311 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 00:52:02,311 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,312 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 00:52:02,313 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,314 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 00:52:02,315 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,316 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 00:52:02,317 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 00:52:02,318 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 00:52:02,318 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,318 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,318 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,318 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 00:52:02,319 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 00:52:02,320 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,320 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,320 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 00:52:02,320 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 00:52:02,320 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,321 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 00:52:02,322 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 00:52:02,323 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 00:52:02,323 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,323 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,323 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 6 ~a15~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and (<= 9 ~a21~0) (<= ~a21~0 9) .cse0) (and .cse0 .cse1))) [2021-10-13 00:52:02,324 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 00:52:02,324 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 00:52:02,324 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 00:52:02,324 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 00:52:02,324 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,325 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 00:52:02,326 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 00:52:02,327 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,328 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,329 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 00:52:02,329 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,329 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 00:52:02,329 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 6 ~a15~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and (<= 9 ~a21~0) (<= ~a21~0 9) .cse0) (and .cse0 .cse1))) [2021-10-13 00:52:02,329 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 00:52:02,330 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:52:02,331 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 00:52:02,332 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 00:52:02,332 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:52:02,332 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 00:52:02,338 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:52:02,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:52:02 BoogieIcfgContainer [2021-10-13 00:52:02,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:52:02,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:52:02,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:52:02,358 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:52:02,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:51:12" (3/4) ... [2021-10-13 00:52:02,362 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:52:02,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:52:02,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:52:02,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:52:02,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:52:02,554 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:52:02,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:52:02,556 INFO L168 Benchmark]: Toolchain (without parser) took 53410.16 ms. Allocated memory was 98.6 MB in the beginning and 604.0 MB in the end (delta: 505.4 MB). Free memory was 67.4 MB in the beginning and 355.9 MB in the end (delta: -288.5 MB). Peak memory consumption was 216.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,556 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:52:02,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.71 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 52.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.66 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 52.6 MB in the beginning and 91.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,558 INFO L168 Benchmark]: Boogie Preprocessor took 130.67 ms. Allocated memory is still 121.6 MB. Free memory was 91.0 MB in the beginning and 85.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,558 INFO L168 Benchmark]: RCFGBuilder took 2028.91 ms. Allocated memory is still 121.6 MB. Free memory was 84.6 MB in the beginning and 62.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,559 INFO L168 Benchmark]: TraceAbstraction took 49978.15 ms. Allocated memory was 121.6 MB in the beginning and 604.0 MB in the end (delta: 482.3 MB). Free memory was 61.6 MB in the beginning and 374.7 MB in the end (delta: -313.1 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,559 INFO L168 Benchmark]: Witness Printer took 196.65 ms. Allocated memory is still 604.0 MB. Free memory was 374.7 MB in the beginning and 355.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:02,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 843.71 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 52.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 209.66 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 52.6 MB in the beginning and 91.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.67 ms. Allocated memory is still 121.6 MB. Free memory was 91.0 MB in the beginning and 85.4 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2028.91 ms. Allocated memory is still 121.6 MB. Free memory was 84.6 MB in the beginning and 62.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 49978.15 ms. Allocated memory was 121.6 MB in the beginning and 604.0 MB in the end (delta: 482.3 MB). Free memory was 61.6 MB in the beginning and 374.7 MB in the end (delta: -313.1 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. * Witness Printer took 196.65 ms. Allocated memory is still 604.0 MB. Free memory was 374.7 MB in the beginning and 355.9 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: 167]: 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: 49859.5ms, OverallIterations: 17, TraceHistogramMax: 8, EmptinessCheckTime: 183.4ms, AutomataDifference: 14934.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 370.6ms, InitialAbstractionConstructionTime: 24.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1611 SDtfs, 2249 SDslu, 97 SDs, 0 SdLazy, 9123 SolverSat, 1119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10702.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4521 GetRequests, 4472 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 288.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=16, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1474.5ms AutomataMinimizationTime, 17 MinimizatonAttempts, 3711 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4960 FormulaSimplificationTreeSizeReduction, 152.0ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 202 FormulaSimplificationTreeSizeReductionInter, 207.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 713.6ms SsaConstructionTime, 2121.2ms SatisfiabilityAnalysisTime, 21615.2ms InterpolantComputationTime, 12347 NumberOfCodeBlocks, 12347 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 12322 ConstructedInterpolants, 0 QuantifiedInterpolants, 45076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5777 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 25 InterpolantComputations, 16 PerfectInterpolantSequences, 21627/23088 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: ((((6 <= a15 && a24 == 1) || (a24 == 1 && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((9 <= a21 && a21 <= 9) && a24 == 1)) || (a24 == 1 && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((6 <= a15 && a24 == 1) || (a24 == 1 && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((9 <= a21 && a21 <= 9) && a24 == 1)) || (a24 == 1 && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:52:02,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb612dfc-8b65-43a3-a3bd-21a9b8d82c56/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...