./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label26.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_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/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_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label26.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/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_b764cc23-88ef-489c-baa9-797c4144b355/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 b595fa05a1614340785d09d23c14605d58462277 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:20:27,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:20:27,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:20:28,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:20:28,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:20:28,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:20:28,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:20:28,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:20:28,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:20:28,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:20:28,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:20:28,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:20:28,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:20:28,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:20:28,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:20:28,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:20:28,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:20:28,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:20:28,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:20:28,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:20:28,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:20:28,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:20:28,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:20:28,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:20:28,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:20:28,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:20:28,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:20:28,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:20:28,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:20:28,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:20:28,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:20:28,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:20:28,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:20:28,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:20:28,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:20:28,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:20:28,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:20:28,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:20:28,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:20:28,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:20:28,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:20:28,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:20:28,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:20:28,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:20:28,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:20:28,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:20:28,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:20:28,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:20:28,162 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:20:28,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:20:28,163 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:20:28,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:20:28,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:20:28,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:20:28,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:20:28,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:20:28,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:20:28,165 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:20:28,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:20:28,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:20:28,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:20:28,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:20:28,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:20:28,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:20:28,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:20:28,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:20:28,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:20:28,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:20:28,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:20:28,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:20:28,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:20:28,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:20:28,169 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_b764cc23-88ef-489c-baa9-797c4144b355/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b595fa05a1614340785d09d23c14605d58462277 [2021-10-13 01:20:28,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:20:28,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:20:28,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:20:28,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:20:28,556 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:20:28,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label26.c [2021-10-13 01:20:28,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/data/8087e3dcc/a028b6a1e04e4ddb8fe449689cbd37fa/FLAGe6f951040 [2021-10-13 01:20:29,297 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:20:29,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/sv-benchmarks/c/eca-rers2012/Problem14_label26.c [2021-10-13 01:20:29,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/data/8087e3dcc/a028b6a1e04e4ddb8fe449689cbd37fa/FLAGe6f951040 [2021-10-13 01:20:29,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/data/8087e3dcc/a028b6a1e04e4ddb8fe449689cbd37fa [2021-10-13 01:20:29,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:20:29,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:20:29,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:29,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:20:29,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:20:29,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:29" (1/1) ... [2021-10-13 01:20:29,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d72a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:29, skipping insertion in model container [2021-10-13 01:20:29,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:29" (1/1) ... [2021-10-13 01:20:29,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:20:29,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:20:29,917 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_b764cc23-88ef-489c-baa9-797c4144b355/sv-benchmarks/c/eca-rers2012/Problem14_label26.c[6725,6738] [2021-10-13 01:20:30,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:30,202 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:20:30,276 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_b764cc23-88ef-489c-baa9-797c4144b355/sv-benchmarks/c/eca-rers2012/Problem14_label26.c[6725,6738] [2021-10-13 01:20:30,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:30,475 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:20:30,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30 WrapperNode [2021-10-13 01:20:30,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:30,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:30,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:20:30,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:20:30,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:30,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:20:30,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:20:30,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:20:30,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:20:30,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:20:30,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:20:30,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:20:30,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (1/1) ... [2021-10-13 01:20:30,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:20:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:30,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:20:30,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:20:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:20:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:20:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:20:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:20:32,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:20:32,948 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:20:32,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:32 BoogieIcfgContainer [2021-10-13 01:20:32,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:20:32,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:20:32,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:20:32,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:20:32,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:20:29" (1/3) ... [2021-10-13 01:20:32,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708c3ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:32, skipping insertion in model container [2021-10-13 01:20:32,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:30" (2/3) ... [2021-10-13 01:20:32,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708c3ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:32, skipping insertion in model container [2021-10-13 01:20:32,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:32" (3/3) ... [2021-10-13 01:20:32,964 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label26.c [2021-10-13 01:20:32,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:20:32,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:20:33,058 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:20:33,073 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 01:20:33,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:20:33,109 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 01:20:33,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-13 01:20:33,126 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:33,127 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:33,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:33,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:33,136 INFO L82 PathProgramCache]: Analyzing trace with hash -215114758, now seen corresponding path program 1 times [2021-10-13 01:20:33,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:33,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996197721] [2021-10-13 01:20:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:33,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:33,490 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 01:20:33,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:33,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996197721] [2021-10-13 01:20:33,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996197721] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:33,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:33,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:20:33,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90309431] [2021-10-13 01:20:33,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:33,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:33,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:33,544 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 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 01:20:34,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:34,828 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-10-13 01:20:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:34,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 66 [2021-10-13 01:20:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:34,849 INFO L225 Difference]: With dead ends: 669 [2021-10-13 01:20:34,849 INFO L226 Difference]: Without dead ends: 360 [2021-10-13 01:20:34,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-13 01:20:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-13 01:20:34,928 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 01:20:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-10-13 01:20:34,933 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 66 [2021-10-13 01:20:34,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:34,934 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-10-13 01:20:34,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 01:20:34,935 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-10-13 01:20:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-13 01:20:34,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:34,944 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:34,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:20:34,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:34,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1364898313, now seen corresponding path program 1 times [2021-10-13 01:20:34,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:34,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123476311] [2021-10-13 01:20:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:34,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:20:35,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:35,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123476311] [2021-10-13 01:20:35,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123476311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:35,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:35,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:20:35,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189301407] [2021-10-13 01:20:35,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:35,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:35,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:35,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:35,176 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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 01:20:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:36,184 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2021-10-13 01:20:36,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:36,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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 141 [2021-10-13 01:20:36,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:36,191 INFO L225 Difference]: With dead ends: 1074 [2021-10-13 01:20:36,192 INFO L226 Difference]: Without dead ends: 716 [2021-10-13 01:20:36,194 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-13 01:20:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-13 01:20:36,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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 01:20:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-10-13 01:20:36,245 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 141 [2021-10-13 01:20:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:36,246 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-10-13 01:20:36,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 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 01:20:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-10-13 01:20:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-10-13 01:20:36,251 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:36,252 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:36,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:20:36,252 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:36,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:36,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1093648019, now seen corresponding path program 1 times [2021-10-13 01:20:36,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:36,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299998404] [2021-10-13 01:20:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:36,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:20:36,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:36,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299998404] [2021-10-13 01:20:36,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299998404] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:36,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:36,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:36,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498531373] [2021-10-13 01:20:36,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:36,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:36,508 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 01:20:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:37,828 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2021-10-13 01:20:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2021-10-13 01:20:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:37,839 INFO L225 Difference]: With dead ends: 1964 [2021-10-13 01:20:37,839 INFO L226 Difference]: Without dead ends: 1250 [2021-10-13 01:20:37,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-13 01:20:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-10-13 01:20:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 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 01:20:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-10-13 01:20:37,884 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 145 [2021-10-13 01:20:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:37,885 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-10-13 01:20:37,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 01:20:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-10-13 01:20:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-13 01:20:37,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:37,894 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:20:37,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:20:37,895 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:37,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:37,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1032338879, now seen corresponding path program 1 times [2021-10-13 01:20:37,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:37,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207990372] [2021-10-13 01:20:37,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:37,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-13 01:20:38,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:38,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207990372] [2021-10-13 01:20:38,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207990372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:38,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:38,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:38,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280814547] [2021-10-13 01:20:38,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:38,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:38,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:38,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:38,038 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 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 01:20:38,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:38,933 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-10-13 01:20:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:38,936 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 225 [2021-10-13 01:20:38,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:38,948 INFO L225 Difference]: With dead ends: 2705 [2021-10-13 01:20:38,948 INFO L226 Difference]: Without dead ends: 1606 [2021-10-13 01:20:38,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-13 01:20:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-13 01:20:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 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 01:20:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-10-13 01:20:39,006 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 225 [2021-10-13 01:20:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:39,008 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-10-13 01:20:39,008 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 01:20:39,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-10-13 01:20:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-10-13 01:20:39,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:39,017 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-13 01:20:39,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:20:39,017 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:39,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:39,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1767683600, now seen corresponding path program 1 times [2021-10-13 01:20:39,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:39,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466937479] [2021-10-13 01:20:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:39,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 239 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 01:20:39,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:39,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466937479] [2021-10-13 01:20:39,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466937479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:39,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568332216] [2021-10-13 01:20:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:39,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:39,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:39,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:39,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:20:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:39,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:39,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-10-13 01:20:40,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568332216] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:40,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:40,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 01:20:40,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022704602] [2021-10-13 01:20:40,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:40,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:40,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:40,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:40,922 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 01:20:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:41,600 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-10-13 01:20:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:41,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 352 [2021-10-13 01:20:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:41,616 INFO L225 Difference]: With dead ends: 3388 [2021-10-13 01:20:41,617 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 01:20:41,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 01:20:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-10-13 01:20:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 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 01:20:41,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2021-10-13 01:20:41,676 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 352 [2021-10-13 01:20:41,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:41,677 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2021-10-13 01:20:41,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 01:20:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2021-10-13 01:20:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-10-13 01:20:41,685 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:41,685 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 01:20:41,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:41,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:41,912 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:41,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:41,913 INFO L82 PathProgramCache]: Analyzing trace with hash 15987974, now seen corresponding path program 1 times [2021-10-13 01:20:41,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:41,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789693462] [2021-10-13 01:20:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:41,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-13 01:20:42,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:42,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789693462] [2021-10-13 01:20:42,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789693462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:42,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:42,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:42,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789860541] [2021-10-13 01:20:42,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:42,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:42,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:42,278 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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 01:20:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:43,030 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2021-10-13 01:20:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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 356 [2021-10-13 01:20:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:43,045 INFO L225 Difference]: With dead ends: 3744 [2021-10-13 01:20:43,045 INFO L226 Difference]: Without dead ends: 2140 [2021-10-13 01:20:43,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-10-13 01:20:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-10-13 01:20:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 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 01:20:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2021-10-13 01:20:43,113 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 356 [2021-10-13 01:20:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:43,114 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2021-10-13 01:20:43,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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 01:20:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2021-10-13 01:20:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-10-13 01:20:43,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:43,124 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 01:20:43,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 01:20:43,124 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:43,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1351643764, now seen corresponding path program 1 times [2021-10-13 01:20:43,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:43,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42289942] [2021-10-13 01:20:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:43,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:43,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:43,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42289942] [2021-10-13 01:20:43,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42289942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:43,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:43,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:43,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296486509] [2021-10-13 01:20:43,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:43,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:43,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:43,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:43,360 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 01:20:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:44,135 INFO L93 Difference]: Finished difference Result 4634 states and 5295 transitions. [2021-10-13 01:20:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 383 [2021-10-13 01:20:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:44,151 INFO L225 Difference]: With dead ends: 4634 [2021-10-13 01:20:44,151 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 01:20:44,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 01:20:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-10-13 01:20:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1208380097268986) internal successors, (2996), 2673 states have internal predecessors, (2996), 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 01:20:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2996 transitions. [2021-10-13 01:20:44,245 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2996 transitions. Word has length 383 [2021-10-13 01:20:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:44,246 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2996 transitions. [2021-10-13 01:20:44,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 01:20:44,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2996 transitions. [2021-10-13 01:20:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-13 01:20:44,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:44,255 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:44,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:20:44,256 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:44,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1246435889, now seen corresponding path program 1 times [2021-10-13 01:20:44,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:44,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837853817] [2021-10-13 01:20:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:44,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:44,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:44,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837853817] [2021-10-13 01:20:44,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837853817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:44,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:44,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:44,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455179767] [2021-10-13 01:20:44,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:44,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:44,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:44,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:44,472 INFO L87 Difference]: Start difference. First operand 2674 states and 2996 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 01:20:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:45,180 INFO L93 Difference]: Finished difference Result 5524 states and 6281 transitions. [2021-10-13 01:20:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 390 [2021-10-13 01:20:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:45,199 INFO L225 Difference]: With dead ends: 5524 [2021-10-13 01:20:45,199 INFO L226 Difference]: Without dead ends: 3030 [2021-10-13 01:20:45,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:45,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-13 01:20:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2852. [2021-10-13 01:20:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.1417046650298142) internal successors, (3255), 2851 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 01:20:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3255 transitions. [2021-10-13 01:20:45,278 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3255 transitions. Word has length 390 [2021-10-13 01:20:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:45,279 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3255 transitions. [2021-10-13 01:20:45,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 01:20:45,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3255 transitions. [2021-10-13 01:20:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-10-13 01:20:45,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:45,291 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:45,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 01:20:45,292 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:45,293 INFO L82 PathProgramCache]: Analyzing trace with hash -654982799, now seen corresponding path program 1 times [2021-10-13 01:20:45,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:45,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994038423] [2021-10-13 01:20:45,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:45,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:45,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:45,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994038423] [2021-10-13 01:20:45,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994038423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:45,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:45,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:45,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978386763] [2021-10-13 01:20:45,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:45,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:45,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:45,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:45,491 INFO L87 Difference]: Start difference. First operand 2852 states and 3255 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 01:20:46,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:46,273 INFO L93 Difference]: Finished difference Result 6592 states and 7590 transitions. [2021-10-13 01:20:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:46,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 462 [2021-10-13 01:20:46,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:46,300 INFO L225 Difference]: With dead ends: 6592 [2021-10-13 01:20:46,300 INFO L226 Difference]: Without dead ends: 3920 [2021-10-13 01:20:46,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-13 01:20:46,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2021-10-13 01:20:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.137790252615463) internal successors, (4459), 3919 states have internal predecessors, (4459), 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 01:20:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4459 transitions. [2021-10-13 01:20:46,410 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4459 transitions. Word has length 462 [2021-10-13 01:20:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:46,411 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4459 transitions. [2021-10-13 01:20:46,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 01:20:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4459 transitions. [2021-10-13 01:20:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-10-13 01:20:46,419 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:46,420 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:46,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:20:46,420 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:46,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1033800595, now seen corresponding path program 1 times [2021-10-13 01:20:46,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:46,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974877746] [2021-10-13 01:20:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:46,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 754 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-10-13 01:20:46,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:46,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974877746] [2021-10-13 01:20:46,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974877746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:46,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:46,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:46,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069616961] [2021-10-13 01:20:46,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:46,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:46,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:46,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:46,683 INFO L87 Difference]: Start difference. First operand 3920 states and 4459 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 01:20:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:47,544 INFO L93 Difference]: Finished difference Result 7896 states and 8991 transitions. [2021-10-13 01:20:47,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 537 [2021-10-13 01:20:47,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:47,566 INFO L225 Difference]: With dead ends: 7896 [2021-10-13 01:20:47,566 INFO L226 Difference]: Without dead ends: 4098 [2021-10-13 01:20:47,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-10-13 01:20:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2021-10-13 01:20:47,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0944118397550395) internal successors, (4289), 3919 states have internal predecessors, (4289), 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 01:20:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4289 transitions. [2021-10-13 01:20:47,680 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4289 transitions. Word has length 537 [2021-10-13 01:20:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:47,681 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4289 transitions. [2021-10-13 01:20:47,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 01:20:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4289 transitions. [2021-10-13 01:20:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-10-13 01:20:47,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:47,688 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:47,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 01:20:47,689 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:47,689 INFO L82 PathProgramCache]: Analyzing trace with hash 415759000, now seen corresponding path program 1 times [2021-10-13 01:20:47,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:47,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578584341] [2021-10-13 01:20:47,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:47,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 578 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:47,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:47,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578584341] [2021-10-13 01:20:47,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578584341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:47,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:47,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:20:47,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907994142] [2021-10-13 01:20:47,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:47,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:47,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:47,935 INFO L87 Difference]: Start difference. First operand 3920 states and 4289 transitions. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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 01:20:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:49,164 INFO L93 Difference]: Finished difference Result 10152 states and 11194 transitions. [2021-10-13 01:20:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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 545 [2021-10-13 01:20:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:49,203 INFO L225 Difference]: With dead ends: 10152 [2021-10-13 01:20:49,204 INFO L226 Difference]: Without dead ends: 6412 [2021-10-13 01:20:49,210 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-10-13 01:20:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6234. [2021-10-13 01:20:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0948179047007862) internal successors, (6824), 6233 states have internal predecessors, (6824), 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 01:20:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6824 transitions. [2021-10-13 01:20:49,377 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6824 transitions. Word has length 545 [2021-10-13 01:20:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:49,379 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6824 transitions. [2021-10-13 01:20:49,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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 01:20:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6824 transitions. [2021-10-13 01:20:49,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2021-10-13 01:20:49,389 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:49,390 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:49,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 01:20:49,390 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:49,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:49,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1651640121, now seen corresponding path program 1 times [2021-10-13 01:20:49,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:49,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810807660] [2021-10-13 01:20:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:49,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 976 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-13 01:20:49,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:49,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810807660] [2021-10-13 01:20:49,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810807660] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:49,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:49,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:49,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093989431] [2021-10-13 01:20:49,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:49,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:49,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:49,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:49,640 INFO L87 Difference]: Start difference. First operand 6234 states and 6824 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 01:20:50,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:50,307 INFO L93 Difference]: Finished difference Result 12288 states and 13467 transitions. [2021-10-13 01:20:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:50,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 599 [2021-10-13 01:20:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:50,331 INFO L225 Difference]: With dead ends: 12288 [2021-10-13 01:20:50,337 INFO L226 Difference]: Without dead ends: 6234 [2021-10-13 01:20:50,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-10-13 01:20:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2021-10-13 01:20:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0739611743943527) internal successors, (6694), 6233 states have internal predecessors, (6694), 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 01:20:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6694 transitions. [2021-10-13 01:20:50,481 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6694 transitions. Word has length 599 [2021-10-13 01:20:50,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:50,482 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6694 transitions. [2021-10-13 01:20:50,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 01:20:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6694 transitions. [2021-10-13 01:20:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-10-13 01:20:50,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:50,494 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, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:50,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 01:20:50,494 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:50,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1541670449, now seen corresponding path program 1 times [2021-10-13 01:20:50,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:50,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73441893] [2021-10-13 01:20:50,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:50,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:50,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 1320 proven. 104 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-13 01:20:50,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:50,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73441893] [2021-10-13 01:20:50,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73441893] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:50,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698249914] [2021-10-13 01:20:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:50,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:50,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:50,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:20:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:51,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:51,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-10-13 01:20:53,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698249914] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:53,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:53,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 01:20:53,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085755457] [2021-10-13 01:20:53,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:53,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:20:53,139 INFO L87 Difference]: Start difference. First operand 6234 states and 6694 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:53,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:53,682 INFO L93 Difference]: Finished difference Result 7660 states and 8176 transitions. [2021-10-13 01:20:53,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:53,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 676 [2021-10-13 01:20:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:53,714 INFO L225 Difference]: With dead ends: 7660 [2021-10-13 01:20:53,714 INFO L226 Difference]: Without dead ends: 7658 [2021-10-13 01:20:53,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 675 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:20:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7658 states. [2021-10-13 01:20:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7658 to 6234. [2021-10-13 01:20:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0733194288464625) internal successors, (6690), 6233 states have internal predecessors, (6690), 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 01:20:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6690 transitions. [2021-10-13 01:20:53,855 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6690 transitions. Word has length 676 [2021-10-13 01:20:53,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:53,857 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6690 transitions. [2021-10-13 01:20:53,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6690 transitions. [2021-10-13 01:20:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-10-13 01:20:53,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:53,877 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:53,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:54,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:54,104 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:54,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:54,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1361029074, now seen corresponding path program 1 times [2021-10-13 01:20:54,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:54,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46982217] [2021-10-13 01:20:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:54,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1947 backedges. 1414 proven. 155 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-10-13 01:20:54,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:54,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46982217] [2021-10-13 01:20:54,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46982217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:54,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430606342] [2021-10-13 01:20:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:54,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:54,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:54,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:54,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:20:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:55,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:55,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1947 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2021-10-13 01:20:57,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430606342] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:57,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:57,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 01:20:57,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314050180] [2021-10-13 01:20:57,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:57,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:57,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:57,214 INFO L87 Difference]: Start difference. First operand 6234 states and 6690 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 01:20:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:57,780 INFO L93 Difference]: Finished difference Result 12286 states and 13198 transitions. [2021-10-13 01:20:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:57,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 810 [2021-10-13 01:20:57,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:57,783 INFO L225 Difference]: With dead ends: 12286 [2021-10-13 01:20:57,783 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:20:57,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:20:57,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:20:57,794 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 01:20:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:20:57,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 810 [2021-10-13 01:20:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:57,795 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:20:57,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 01:20:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:20:57,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:20:57,798 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:20:57,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:58,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 01:20:58,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:20:58,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:58,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:58,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:58,263 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,264 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,265 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,266 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,267 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,268 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,268 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 01:20:58,269 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 01:20:58,270 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 01:20:58,270 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 01:20:58,270 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 01:20:58,270 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 01:20:58,270 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 01:20:58,271 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 01:20:58,271 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,271 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,271 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,271 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 01:20:58,272 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 01:20:58,273 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 01:20:58,273 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 01:20:58,273 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 01:20:58,273 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 01:20:58,273 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 01:20:58,274 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 01:20:58,274 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,274 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,274 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 01:20:58,275 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,276 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 01:20:58,277 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,278 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 01:20:58,279 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 01:20:58,279 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 01:20:58,279 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 01:20:58,279 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 01:20:58,279 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,280 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 01:20:58,281 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,282 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 01:20:58,283 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 01:20:58,283 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 01:20:58,283 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:20:58,283 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 01:20:58,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2021-10-13 01:20:58,284 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 01:20:58,284 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 01:20:58,284 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 01:20:58,284 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 01:20:58,285 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 01:20:58,286 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 01:20:58,287 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,288 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 01:20:58,289 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,290 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,291 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 01:20:58,291 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 01:20:58,291 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 01:20:58,291 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 01:20:58,291 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,292 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 01:20:58,293 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 01:20:58,294 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 01:20:58,295 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 01:20:58,296 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 01:20:58,297 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 01:20:58,297 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 01:20:58,297 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 01:20:58,297 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,297 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,299 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 (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 11 ~a12~0)) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and .cse0 .cse1))) [2021-10-13 01:20:58,299 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 01:20:58,299 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 01:20:58,299 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 01:20:58,300 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,301 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,301 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 01:20:58,301 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 01:20:58,301 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 01:20:58,301 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 01:20:58,301 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,302 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 01:20:58,303 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 01:20:58,304 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,304 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,304 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 01:20:58,304 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,304 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 01:20:58,305 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 (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 11 ~a12~0)) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and .cse0 .cse1))) [2021-10-13 01:20:58,305 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 01:20:58,305 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 01:20:58,305 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 01:20:58,305 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 01:20:58,305 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,306 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,307 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:58,307 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 01:20:58,307 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 01:20:58,307 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 01:20:58,307 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 01:20:58,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:20:58,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:20:58 BoogieIcfgContainer [2021-10-13 01:20:58,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:20:58,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:20:58,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:20:58,339 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:20:58,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:32" (3/4) ... [2021-10-13 01:20:58,344 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:20:58,385 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:20:58,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:20:58,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:20:58,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:20:58,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:20:58,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:20:58,575 INFO L168 Benchmark]: Toolchain (without parser) took 29058.03 ms. Allocated memory was 123.7 MB in the beginning and 337.6 MB in the end (delta: 213.9 MB). Free memory was 85.3 MB in the beginning and 141.8 MB in the end (delta: -56.5 MB). Peak memory consumption was 158.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,576 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 123.7 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:20:58,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 954.96 ms. Allocated memory is still 123.7 MB. Free memory was 85.1 MB in the beginning and 79.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.42 ms. Allocated memory is still 123.7 MB. Free memory was 79.0 MB in the beginning and 69.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,577 INFO L168 Benchmark]: Boogie Preprocessor took 111.80 ms. Allocated memory is still 123.7 MB. Free memory was 69.7 MB in the beginning and 63.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,578 INFO L168 Benchmark]: RCFGBuilder took 2200.01 ms. Allocated memory is still 123.7 MB. Free memory was 63.3 MB in the beginning and 88.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,578 INFO L168 Benchmark]: TraceAbstraction took 25383.13 ms. Allocated memory was 123.7 MB in the beginning and 337.6 MB in the end (delta: 213.9 MB). Free memory was 87.3 MB in the beginning and 160.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 140.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,579 INFO L168 Benchmark]: Witness Printer took 234.61 ms. Allocated memory is still 337.6 MB. Free memory was 160.9 MB in the beginning and 141.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:58,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 123.7 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 954.96 ms. Allocated memory is still 123.7 MB. Free memory was 85.1 MB in the beginning and 79.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 161.42 ms. Allocated memory is still 123.7 MB. Free memory was 79.0 MB in the beginning and 69.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 111.80 ms. Allocated memory is still 123.7 MB. Free memory was 69.7 MB in the beginning and 63.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2200.01 ms. Allocated memory is still 123.7 MB. Free memory was 63.3 MB in the beginning and 88.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25383.13 ms. Allocated memory was 123.7 MB in the beginning and 337.6 MB in the end (delta: 213.9 MB). Free memory was 87.3 MB in the beginning and 160.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 140.0 MB. Max. memory is 16.1 GB. * Witness Printer took 234.61 ms. Allocated memory is still 337.6 MB. Free memory was 160.9 MB in the beginning and 141.8 MB in the end (delta: 19.0 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: 212]: 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: 25257.1ms, OverallIterations: 14, TraceHistogramMax: 7, EmptinessCheckTime: 140.9ms, AutomataDifference: 12464.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 250.9ms, InitialAbstractionConstructionTime: 26.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1672 SDtfs, 1968 SDslu, 82 SDs, 0 SdLazy, 7845 SolverSat, 1093 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8861.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1881 GetRequests, 1853 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 187.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6234occurred in iteration=11, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1145.7ms AutomataMinimizationTime, 14 MinimizatonAttempts, 2136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 79 NumberOfFragments, 83 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2024 FormulaSimplificationTreeSizeReduction, 104.3ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 256 FormulaSimplificationTreeSizeReductionInter, 137.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 406.9ms SsaConstructionTime, 1289.3ms SatisfiabilityAnalysisTime, 7733.0ms InterpolantComputationTime, 7525 NumberOfCodeBlocks, 7525 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7508 ConstructedInterpolants, 0 QuantifiedInterpolants, 20685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2378 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 13979/14368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 11 < a12)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || (a24 == 1 && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 11 < a12)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || (a24 == 1 && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-10-13 01:20:58,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b764cc23-88ef-489c-baa9-797c4144b355/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...