./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD --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 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:41:57,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:41:57,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:41:57,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:41:57,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:41:57,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:41:57,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:41:57,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:41:57,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:41:57,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:41:57,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:41:57,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:41:57,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:41:57,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:41:57,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:41:57,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:41:57,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:41:57,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:41:57,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:41:57,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:41:57,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:41:57,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:41:57,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:41:57,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:41:57,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:41:57,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:41:57,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:41:57,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:41:57,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:41:57,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:41:57,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:41:57,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:41:57,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:41:57,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:41:57,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:41:57,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:41:57,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:41:57,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:41:57,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:41:57,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:41:57,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:41:57,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:41:57,149 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:41:57,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:41:57,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:41:57,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:41:57,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:41:57,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:41:57,153 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:41:57,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:41:57,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:41:57,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:41:57,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:41:57,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:41:57,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:41:57,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:41:57,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:41:57,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:41:57,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:41:57,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:41:57,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:41:57,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:41:57,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:41:57,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:41:57,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:41:57,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:41:57,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:41:57,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:41:57,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:41:57,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:41:57,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:41:57,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:41:57,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:41:57,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:41:57,161 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_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d [2021-10-28 23:41:57,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:41:57,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:41:57,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:41:57,529 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:41:57,530 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:41:57,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-10-28 23:41:57,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/data/d246134ad/1cc5e8663eb04a1792512097f31fe87e/FLAG7b28d566c [2021-10-28 23:41:58,299 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:41:58,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-10-28 23:41:58,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/data/d246134ad/1cc5e8663eb04a1792512097f31fe87e/FLAG7b28d566c [2021-10-28 23:41:58,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/data/d246134ad/1cc5e8663eb04a1792512097f31fe87e [2021-10-28 23:41:58,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:41:58,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:41:58,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:58,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:41:58,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:41:58,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfdf803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58, skipping insertion in model container [2021-10-28 23:41:58,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:41:58,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:41:59,171 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_4c998959-499f-484e-a48d-9fc2e9a842ec/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-10-28 23:41:59,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:59,240 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:41:59,473 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_4c998959-499f-484e-a48d-9fc2e9a842ec/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-10-28 23:41:59,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:59,524 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:41:59,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59 WrapperNode [2021-10-28 23:41:59,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:59,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:59,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:41:59,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:41:59,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:59,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:41:59,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:41:59,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:41:59,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:41:59,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:41:59,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:41:59,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:41:59,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (1/1) ... [2021-10-28 23:41:59,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:41:59,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:59,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:41:59,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:41:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:41:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:41:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:41:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:42:01,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:42:01,314 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:42:01,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:01 BoogieIcfgContainer [2021-10-28 23:42:01,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:42:01,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:42:01,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:42:01,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:42:01,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:41:58" (1/3) ... [2021-10-28 23:42:01,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:42:01, skipping insertion in model container [2021-10-28 23:42:01,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:59" (2/3) ... [2021-10-28 23:42:01,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:42:01, skipping insertion in model container [2021-10-28 23:42:01,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:01" (3/3) ... [2021-10-28 23:42:01,331 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label49.c [2021-10-28 23:42:01,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:42:01,340 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:42:01,406 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:42:01,414 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:42:01,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:42:01,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-28 23:42:01,459 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:01,460 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:01,461 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1378216101, now seen corresponding path program 1 times [2021-10-28 23:42:01,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:01,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610197134] [2021-10-28 23:42:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:01,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:02,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:02,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610197134] [2021-10-28 23:42:02,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610197134] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:02,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:02,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:42:02,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149636824] [2021-10-28 23:42:02,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:02,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:02,060 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:03,221 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2021-10-28 23:42:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:03,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-10-28 23:42:03,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:03,241 INFO L225 Difference]: With dead ends: 630 [2021-10-28 23:42:03,242 INFO L226 Difference]: Without dead ends: 318 [2021-10-28 23:42:03,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-28 23:42:03,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-10-28 23:42:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2021-10-28 23:42:03,319 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 125 [2021-10-28 23:42:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:03,320 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2021-10-28 23:42:03,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2021-10-28 23:42:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-10-28 23:42:03,326 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:03,326 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:03,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:42:03,327 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash 427040720, now seen corresponding path program 1 times [2021-10-28 23:42:03,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:03,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119639931] [2021-10-28 23:42:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:03,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:03,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:03,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119639931] [2021-10-28 23:42:03,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119639931] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:03,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:03,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:42:03,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240056029] [2021-10-28 23:42:03,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:42:03,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:42:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:42:03,745 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:04,745 INFO L93 Difference]: Finished difference Result 999 states and 1508 transitions. [2021-10-28 23:42:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:42:04,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-10-28 23:42:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:04,752 INFO L225 Difference]: With dead ends: 999 [2021-10-28 23:42:04,752 INFO L226 Difference]: Without dead ends: 600 [2021-10-28 23:42:04,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:42:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-10-28 23:42:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-10-28 23:42:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.357262103505843) internal successors, (813), 599 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 813 transitions. [2021-10-28 23:42:04,847 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 813 transitions. Word has length 129 [2021-10-28 23:42:04,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:04,849 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 813 transitions. [2021-10-28 23:42:04,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 813 transitions. [2021-10-28 23:42:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-28 23:42:04,862 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:04,863 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:04,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:42:04,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:04,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:04,867 INFO L85 PathProgramCache]: Analyzing trace with hash 349951226, now seen corresponding path program 1 times [2021-10-28 23:42:04,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:04,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080725489] [2021-10-28 23:42:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:04,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:05,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:05,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080725489] [2021-10-28 23:42:05,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080725489] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:05,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:05,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:42:05,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137797021] [2021-10-28 23:42:05,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:05,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:05,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:05,021 INFO L87 Difference]: Start difference. First operand 600 states and 813 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:05,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:05,615 INFO L93 Difference]: Finished difference Result 1779 states and 2417 transitions. [2021-10-28 23:42:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-10-28 23:42:05,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:05,624 INFO L225 Difference]: With dead ends: 1779 [2021-10-28 23:42:05,624 INFO L226 Difference]: Without dead ends: 1181 [2021-10-28 23:42:05,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2021-10-28 23:42:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1173. [2021-10-28 23:42:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.310580204778157) internal successors, (1536), 1172 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1536 transitions. [2021-10-28 23:42:05,686 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1536 transitions. Word has length 143 [2021-10-28 23:42:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:05,687 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1536 transitions. [2021-10-28 23:42:05,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1536 transitions. [2021-10-28 23:42:05,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-28 23:42:05,694 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:05,694 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:05,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:42:05,695 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:05,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:05,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1893011715, now seen corresponding path program 1 times [2021-10-28 23:42:05,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:05,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068492231] [2021-10-28 23:42:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:05,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:42:05,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:05,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068492231] [2021-10-28 23:42:05,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068492231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:05,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:05,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:42:05,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741357965] [2021-10-28 23:42:05,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:05,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:05,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:05,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:05,782 INFO L87 Difference]: Start difference. First operand 1173 states and 1536 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:06,416 INFO L93 Difference]: Finished difference Result 3329 states and 4384 transitions. [2021-10-28 23:42:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:06,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 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 155 [2021-10-28 23:42:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:06,435 INFO L225 Difference]: With dead ends: 3329 [2021-10-28 23:42:06,435 INFO L226 Difference]: Without dead ends: 2158 [2021-10-28 23:42:06,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-10-28 23:42:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-10-28 23:42:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.1996285979572887) internal successors, (2584), 2154 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:06,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2584 transitions. [2021-10-28 23:42:06,551 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2584 transitions. Word has length 155 [2021-10-28 23:42:06,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:06,551 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2584 transitions. [2021-10-28 23:42:06,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2584 transitions. [2021-10-28 23:42:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-28 23:42:06,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:06,560 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:06,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:42:06,560 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:06,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1809702189, now seen corresponding path program 1 times [2021-10-28 23:42:06,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:06,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180776678] [2021-10-28 23:42:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:06,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:06,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:06,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180776678] [2021-10-28 23:42:06,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180776678] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:42:06,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961834225] [2021-10-28 23:42:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:06,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:06,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:06,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:06,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:42:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:06,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:42:06,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-28 23:42:07,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961834225] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:07,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:42:07,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 23:42:07,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178083080] [2021-10-28 23:42:07,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:07,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:07,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:07,548 INFO L87 Difference]: Start difference. First operand 2155 states and 2584 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:08,257 INFO L93 Difference]: Finished difference Result 5008 states and 6115 transitions. [2021-10-28 23:42:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:08,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 158 [2021-10-28 23:42:08,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:08,273 INFO L225 Difference]: With dead ends: 5008 [2021-10-28 23:42:08,274 INFO L226 Difference]: Without dead ends: 2145 [2021-10-28 23:42:08,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-10-28 23:42:08,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2021-10-28 23:42:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.172108208955224) internal successors, (2513), 2144 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:08,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2513 transitions. [2021-10-28 23:42:08,347 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2513 transitions. Word has length 158 [2021-10-28 23:42:08,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:08,347 INFO L470 AbstractCegarLoop]: Abstraction has 2145 states and 2513 transitions. [2021-10-28 23:42:08,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2513 transitions. [2021-10-28 23:42:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-28 23:42:08,355 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:08,355 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:08,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:08,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:08,571 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 503140008, now seen corresponding path program 1 times [2021-10-28 23:42:08,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:08,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87243621] [2021-10-28 23:42:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:08,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:08,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:08,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87243621] [2021-10-28 23:42:08,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87243621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:08,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:08,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:42:08,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968470018] [2021-10-28 23:42:08,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:08,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:08,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:08,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:08,648 INFO L87 Difference]: Start difference. First operand 2145 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:09,254 INFO L93 Difference]: Finished difference Result 4288 states and 5027 transitions. [2021-10-28 23:42:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:09,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2021-10-28 23:42:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:09,268 INFO L225 Difference]: With dead ends: 4288 [2021-10-28 23:42:09,269 INFO L226 Difference]: Without dead ends: 1865 [2021-10-28 23:42:09,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:09,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2021-10-28 23:42:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1857. [2021-10-28 23:42:09,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.1422413793103448) internal successors, (2120), 1856 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:09,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2120 transitions. [2021-10-28 23:42:09,337 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2120 transitions. Word has length 158 [2021-10-28 23:42:09,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:09,337 INFO L470 AbstractCegarLoop]: Abstraction has 1857 states and 2120 transitions. [2021-10-28 23:42:09,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2120 transitions. [2021-10-28 23:42:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-10-28 23:42:09,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:09,345 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:09,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:42:09,346 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1282981854, now seen corresponding path program 1 times [2021-10-28 23:42:09,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:09,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661925030] [2021-10-28 23:42:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:09,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:42:09,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:09,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661925030] [2021-10-28 23:42:09,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661925030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:09,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:09,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:42:09,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310248256] [2021-10-28 23:42:09,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:09,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:09,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:09,445 INFO L87 Difference]: Start difference. First operand 1857 states and 2120 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:10,034 INFO L93 Difference]: Finished difference Result 4270 states and 4883 transitions. [2021-10-28 23:42:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:10,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 177 [2021-10-28 23:42:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:10,053 INFO L225 Difference]: With dead ends: 4270 [2021-10-28 23:42:10,053 INFO L226 Difference]: Without dead ends: 2415 [2021-10-28 23:42:10,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:10,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2021-10-28 23:42:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2414. [2021-10-28 23:42:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2413 states have (on average 1.1338582677165354) internal successors, (2736), 2413 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2736 transitions. [2021-10-28 23:42:10,172 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2736 transitions. Word has length 177 [2021-10-28 23:42:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:10,173 INFO L470 AbstractCegarLoop]: Abstraction has 2414 states and 2736 transitions. [2021-10-28 23:42:10,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2736 transitions. [2021-10-28 23:42:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-10-28 23:42:10,182 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:10,182 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:10,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:42:10,183 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1150507072, now seen corresponding path program 1 times [2021-10-28 23:42:10,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:10,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895140231] [2021-10-28 23:42:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:10,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-28 23:42:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:10,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895140231] [2021-10-28 23:42:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895140231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:10,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:42:10,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292279361] [2021-10-28 23:42:10,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:42:10,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:10,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:42:10,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:10,315 INFO L87 Difference]: Start difference. First operand 2414 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:11,375 INFO L93 Difference]: Finished difference Result 4871 states and 5515 transitions. [2021-10-28 23:42:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:42:11,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 199 [2021-10-28 23:42:11,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:11,421 INFO L225 Difference]: With dead ends: 4871 [2021-10-28 23:42:11,421 INFO L226 Difference]: Without dead ends: 2459 [2021-10-28 23:42:11,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:42:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2021-10-28 23:42:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2414. [2021-10-28 23:42:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2413 states have (on average 1.1230832987981765) internal successors, (2710), 2413 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2710 transitions. [2021-10-28 23:42:11,503 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2710 transitions. Word has length 199 [2021-10-28 23:42:11,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:11,504 INFO L470 AbstractCegarLoop]: Abstraction has 2414 states and 2710 transitions. [2021-10-28 23:42:11,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:11,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2710 transitions. [2021-10-28 23:42:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-28 23:42:11,514 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:11,514 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:11,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:42:11,515 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2023139810, now seen corresponding path program 1 times [2021-10-28 23:42:11,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:11,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259544351] [2021-10-28 23:42:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:11,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-28 23:42:11,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:11,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259544351] [2021-10-28 23:42:11,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259544351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:11,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:11,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:42:11,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008767993] [2021-10-28 23:42:11,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:11,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:11,654 INFO L87 Difference]: Start difference. First operand 2414 states and 2710 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:12,269 INFO L93 Difference]: Finished difference Result 5671 states and 6423 transitions. [2021-10-28 23:42:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 220 [2021-10-28 23:42:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:12,290 INFO L225 Difference]: With dead ends: 5671 [2021-10-28 23:42:12,290 INFO L226 Difference]: Without dead ends: 3259 [2021-10-28 23:42:12,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2021-10-28 23:42:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3257. [2021-10-28 23:42:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3257 states, 3256 states have (on average 1.1173218673218672) internal successors, (3638), 3256 states have internal predecessors, (3638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 3638 transitions. [2021-10-28 23:42:12,430 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 3638 transitions. Word has length 220 [2021-10-28 23:42:12,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:12,431 INFO L470 AbstractCegarLoop]: Abstraction has 3257 states and 3638 transitions. [2021-10-28 23:42:12,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 3638 transitions. [2021-10-28 23:42:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-10-28 23:42:12,442 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:12,443 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:12,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:42:12,443 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 853078772, now seen corresponding path program 1 times [2021-10-28 23:42:12,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:12,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682696680] [2021-10-28 23:42:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:12,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-28 23:42:12,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:12,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682696680] [2021-10-28 23:42:12,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682696680] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:12,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:12,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:42:12,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088304898] [2021-10-28 23:42:12,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:12,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:12,589 INFO L87 Difference]: Start difference. First operand 3257 states and 3638 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:13,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:13,197 INFO L93 Difference]: Finished difference Result 7212 states and 8040 transitions. [2021-10-28 23:42:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:13,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-10-28 23:42:13,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:13,219 INFO L225 Difference]: With dead ends: 7212 [2021-10-28 23:42:13,219 INFO L226 Difference]: Without dead ends: 3255 [2021-10-28 23:42:13,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:42:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2021-10-28 23:42:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3115. [2021-10-28 23:42:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 1.0648683365446372) internal successors, (3316), 3114 states have internal predecessors, (3316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 3316 transitions. [2021-10-28 23:42:13,332 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 3316 transitions. Word has length 236 [2021-10-28 23:42:13,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:13,332 INFO L470 AbstractCegarLoop]: Abstraction has 3115 states and 3316 transitions. [2021-10-28 23:42:13,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 3316 transitions. [2021-10-28 23:42:13,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-10-28 23:42:13,342 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:13,343 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:13,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:42:13,344 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:13,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1109224937, now seen corresponding path program 1 times [2021-10-28 23:42:13,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:13,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58719323] [2021-10-28 23:42:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:13,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 170 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:42:13,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:13,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58719323] [2021-10-28 23:42:13,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58719323] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:42:13,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290345281] [2021-10-28 23:42:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:13,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:13,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:13,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:42:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:13,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:42:13,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-10-28 23:42:14,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290345281] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:14,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:42:14,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-28 23:42:14,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154076104] [2021-10-28 23:42:14,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:14,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:14,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:14,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:14,722 INFO L87 Difference]: Start difference. First operand 3115 states and 3316 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:15,014 INFO L93 Difference]: Finished difference Result 5799 states and 6178 transitions. [2021-10-28 23:42:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:15,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2021-10-28 23:42:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:15,033 INFO L225 Difference]: With dead ends: 5799 [2021-10-28 23:42:15,034 INFO L226 Difference]: Without dead ends: 2686 [2021-10-28 23:42:15,039 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:15,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-10-28 23:42:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2021-10-28 23:42:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2685 states have (on average 1.0558659217877095) internal successors, (2835), 2685 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 2835 transitions. [2021-10-28 23:42:15,160 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 2835 transitions. Word has length 247 [2021-10-28 23:42:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:15,161 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 2835 transitions. [2021-10-28 23:42:15,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 2835 transitions. [2021-10-28 23:42:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-28 23:42:15,170 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:15,171 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:15,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:15,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:15,399 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:15,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:15,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1418483706, now seen corresponding path program 1 times [2021-10-28 23:42:15,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:15,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334390747] [2021-10-28 23:42:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:15,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 163 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:42:15,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:15,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334390747] [2021-10-28 23:42:15,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334390747] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:42:15,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816211902] [2021-10-28 23:42:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:15,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:15,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:15,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:15,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:42:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:15,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:42:15,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-28 23:42:16,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816211902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:16,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:42:16,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 23:42:16,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478185861] [2021-10-28 23:42:16,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:16,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:42:16,902 INFO L87 Difference]: Start difference. First operand 2686 states and 2835 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:17,363 INFO L93 Difference]: Finished difference Result 5651 states and 5963 transitions. [2021-10-28 23:42:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:17,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 260 [2021-10-28 23:42:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:17,381 INFO L225 Difference]: With dead ends: 5651 [2021-10-28 23:42:17,382 INFO L226 Difference]: Without dead ends: 2683 [2021-10-28 23:42:17,386 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:42:17,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2021-10-28 23:42:17,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2403. [2021-10-28 23:42:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 1.0474604496253122) internal successors, (2516), 2402 states have internal predecessors, (2516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 2516 transitions. [2021-10-28 23:42:17,460 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 2516 transitions. Word has length 260 [2021-10-28 23:42:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:17,461 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 2516 transitions. [2021-10-28 23:42:17,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 2516 transitions. [2021-10-28 23:42:17,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-10-28 23:42:17,472 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:17,472 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:17,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:17,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-28 23:42:17,699 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1984046020, now seen corresponding path program 1 times [2021-10-28 23:42:17,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:17,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909486562] [2021-10-28 23:42:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:17,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 263 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-28 23:42:17,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:17,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909486562] [2021-10-28 23:42:17,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909486562] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:42:17,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007149545] [2021-10-28 23:42:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:17,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:17,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:17,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:17,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:42:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:18,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:42:18,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-10-28 23:42:19,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007149545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:19,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:42:19,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 23:42:19,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018152992] [2021-10-28 23:42:19,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:19,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:19,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:19,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:19,043 INFO L87 Difference]: Start difference. First operand 2403 states and 2516 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:19,484 INFO L93 Difference]: Finished difference Result 4381 states and 4592 transitions. [2021-10-28 23:42:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 288 [2021-10-28 23:42:19,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:19,497 INFO L225 Difference]: With dead ends: 4381 [2021-10-28 23:42:19,498 INFO L226 Difference]: Without dead ends: 2120 [2021-10-28 23:42:19,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2021-10-28 23:42:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2117. [2021-10-28 23:42:19,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.0382797731568998) internal successors, (2197), 2116 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2197 transitions. [2021-10-28 23:42:19,586 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2197 transitions. Word has length 288 [2021-10-28 23:42:19,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:19,587 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2197 transitions. [2021-10-28 23:42:19,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2197 transitions. [2021-10-28 23:42:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-10-28 23:42:19,598 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:42:19,598 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:19,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:19,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 23:42:19,811 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:42:19,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash 988377072, now seen corresponding path program 1 times [2021-10-28 23:42:19,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:19,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936313098] [2021-10-28 23:42:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:19,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 249 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-28 23:42:19,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:42:19,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936313098] [2021-10-28 23:42:19,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936313098] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:42:19,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753470960] [2021-10-28 23:42:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:19,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:19,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:19,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:19,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:42:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:20,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:42:20,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-10-28 23:42:21,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753470960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:42:21,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:42:21,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 23:42:21,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932428722] [2021-10-28 23:42:21,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:42:21,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:42:21,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:42:21,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:21,495 INFO L87 Difference]: Start difference. First operand 2117 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:21,908 INFO L93 Difference]: Finished difference Result 2537 states and 2631 transitions. [2021-10-28 23:42:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 291 [2021-10-28 23:42:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:21,910 INFO L225 Difference]: With dead ends: 2537 [2021-10-28 23:42:21,910 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:42:21,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:42:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:42:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:42:21,914 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) [2021-10-28 23:42:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:42:21,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 291 [2021-10-28 23:42:21,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:21,915 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:42:21,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:42:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:42:21,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:42:21,918 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:21,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:22,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:42:22,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:42:22,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:42:22,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:42:22,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:42:22,847 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,847 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,847 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,847 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-28 23:42:22,848 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-28 23:42:22,848 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-28 23:42:22,848 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-10-28 23:42:22,848 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-10-28 23:42:22,848 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-10-28 23:42:22,849 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-28 23:42:22,849 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-28 23:42:22,849 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,849 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,849 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,850 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-28 23:42:22,850 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-28 23:42:22,850 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-10-28 23:42:22,850 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-10-28 23:42:22,851 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-28 23:42:22,851 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,851 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,851 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,851 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-28 23:42:22,852 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-28 23:42:22,852 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-28 23:42:22,852 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-10-28 23:42:22,852 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-10-28 23:42:22,852 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-10-28 23:42:22,853 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-10-28 23:42:22,853 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-28 23:42:22,853 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-10-28 23:42:22,853 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-28 23:42:22,853 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,854 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,854 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,854 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-28 23:42:22,854 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-10-28 23:42:22,854 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-10-28 23:42:22,855 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-10-28 23:42:22,855 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-28 23:42:22,855 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-28 23:42:22,855 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-28 23:42:22,855 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,856 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,856 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,856 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-28 23:42:22,856 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-10-28 23:42:22,857 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-10-28 23:42:22,857 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-10-28 23:42:22,857 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-10-28 23:42:22,857 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-10-28 23:42:22,857 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-28 23:42:22,858 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,865 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,865 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,866 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-28 23:42:22,866 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-10-28 23:42:22,866 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-10-28 23:42:22,866 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-10-28 23:42:22,866 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-28 23:42:22,867 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,867 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,867 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,867 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-28 23:42:22,867 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-28 23:42:22,868 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-10-28 23:42:22,868 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-10-28 23:42:22,868 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-10-28 23:42:22,868 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-28 23:42:22,868 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-28 23:42:22,869 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-28 23:42:22,869 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,869 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,869 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,870 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-28 23:42:22,870 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:42:22,870 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-10-28 23:42:22,870 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-10-28 23:42:22,870 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-28 23:42:22,871 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-28 23:42:22,871 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-28 23:42:22,871 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-28 23:42:22,871 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-28 23:42:22,871 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,872 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,872 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,872 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-10-28 23:42:22,872 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-10-28 23:42:22,872 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-10-28 23:42:22,873 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-10-28 23:42:22,873 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-10-28 23:42:22,873 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-10-28 23:42:22,873 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-10-28 23:42:22,873 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-28 23:42:22,874 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-28 23:42:22,874 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,874 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,874 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,874 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-28 23:42:22,875 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-10-28 23:42:22,875 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-10-28 23:42:22,875 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-10-28 23:42:22,875 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-28 23:42:22,875 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-28 23:42:22,876 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:42:22,876 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2021-10-28 23:42:22,876 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,876 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,877 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,877 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-28 23:42:22,877 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-28 23:42:22,877 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-10-28 23:42:22,877 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-28 23:42:22,878 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-10-28 23:42:22,878 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-28 23:42:22,878 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-28 23:42:22,878 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-28 23:42:22,878 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,879 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,879 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,879 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-10-28 23:42:22,879 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-10-28 23:42:22,880 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-28 23:42:22,880 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-28 23:42:22,880 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-28 23:42:22,880 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,880 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,881 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,881 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-28 23:42:22,881 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-10-28 23:42:22,881 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-10-28 23:42:22,881 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-10-28 23:42:22,882 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-28 23:42:22,882 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-28 23:42:22,882 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-10-28 23:42:22,882 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-10-28 23:42:22,882 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-28 23:42:22,883 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-28 23:42:22,883 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-10-28 23:42:22,883 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,883 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,883 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-28 23:42:22,884 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-10-28 23:42:22,884 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-10-28 23:42:22,884 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-10-28 23:42:22,884 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-28 23:42:22,884 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-28 23:42:22,885 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-10-28 23:42:22,885 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-10-28 23:42:22,885 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-28 23:42:22,886 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse10 (<= ~a28~0 7)) (.cse3 (<= ~a28~0 10)) (.cse11 (<= ~a28~0 8)) (.cse9 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse1 (= ~a17~0 8)) (.cse8 (= ~a25~0 1)) (.cse6 (= ~a11~0 1)) (.cse2 (= ~a21~0 1)) (.cse4 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 9 ~a28~0) .cse6 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse7 .cse3) (and .cse0 .cse8 .cse7 .cse3 .cse4) (and .cse6 .cse7 .cse10 .cse5) (and .cse8 .cse7 .cse4 .cse10) (and .cse8 .cse11 .cse9 .cse7 .cse4) (and .cse8 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse2 .cse7 .cse4 (not .cse6)) (<= ~a17~0 7) (and .cse2 .cse9 .cse7 .cse3 .cse4 .cse5) (and .cse1 .cse8 .cse2 .cse9 .cse3 .cse4) (and .cse11 .cse9 .cse7 .cse5) (and .cse1 .cse8 .cse6 .cse2 .cse4 (= ~a28~0 9)))) [2021-10-28 23:42:22,886 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,886 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,887 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-28 23:42:22,887 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-10-28 23:42:22,887 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-10-28 23:42:22,887 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-28 23:42:22,887 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-10-28 23:42:22,888 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-10-28 23:42:22,888 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-28 23:42:22,888 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,888 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,888 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-28 23:42:22,889 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-10-28 23:42:22,889 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-10-28 23:42:22,889 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-28 23:42:22,889 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-28 23:42:22,890 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-28 23:42:22,890 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-10-28 23:42:22,890 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-10-28 23:42:22,890 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-28 23:42:22,890 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,891 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,891 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-10-28 23:42:22,891 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-10-28 23:42:22,891 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-10-28 23:42:22,891 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-10-28 23:42:22,892 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:42:22,892 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-28 23:42:22,892 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-28 23:42:22,892 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse10 (<= ~a28~0 7)) (.cse3 (<= ~a28~0 10)) (.cse11 (<= ~a28~0 8)) (.cse9 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse1 (= ~a17~0 8)) (.cse8 (= ~a25~0 1)) (.cse6 (= ~a11~0 1)) (.cse2 (= ~a21~0 1)) (.cse4 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 9 ~a28~0) .cse6 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse7 .cse3) (and .cse0 .cse8 .cse7 .cse3 .cse4) (and .cse6 .cse7 .cse10 .cse5) (and .cse8 .cse7 .cse4 .cse10) (and .cse8 .cse11 .cse9 .cse7 .cse4) (and .cse8 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse2 .cse7 .cse4 (not .cse6)) (<= ~a17~0 7) (and .cse2 .cse9 .cse7 .cse3 .cse4 .cse5) (and .cse1 .cse8 .cse2 .cse9 .cse3 .cse4) (and .cse11 .cse9 .cse7 .cse5) (and .cse1 .cse8 .cse6 .cse2 .cse4 (= ~a28~0 9)))) [2021-10-28 23:42:22,893 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,893 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,893 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-28 23:42:22,893 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-10-28 23:42:22,893 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-10-28 23:42:22,894 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-28 23:42:22,894 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-28 23:42:22,894 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,894 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,894 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-10-28 23:42:22,895 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-10-28 23:42:22,895 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-28 23:42:22,895 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-28 23:42:22,895 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-28 23:42:22,896 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-28 23:42:22,896 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-28 23:42:22,896 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-28 23:42:22,896 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-10-28 23:42:22,896 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,897 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,897 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-10-28 23:42:22,897 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,897 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:42:22,897 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-10-28 23:42:22,898 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-10-28 23:42:22,898 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-10-28 23:42:22,898 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-28 23:42:22,898 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-28 23:42:22,898 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-28 23:42:22,899 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,899 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,899 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,899 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-10-28 23:42:22,899 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-10-28 23:42:22,900 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-10-28 23:42:22,900 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-28 23:42:22,900 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-28 23:42:22,900 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,900 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,901 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 23:42:22,901 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-28 23:42:22,901 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-10-28 23:42:22,901 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-28 23:42:22,901 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-10-28 23:42:22,902 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-28 23:42:22,902 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-28 23:42:22,906 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:22,907 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:42:22,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:42:22 BoogieIcfgContainer [2021-10-28 23:42:22,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:42:22,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:42:22,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:42:22,940 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:42:22,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:42:01" (3/4) ... [2021-10-28 23:42:22,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:42:22,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 23:42:22,978 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:42:22,980 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:42:22,982 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:42:23,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:42:23,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:42:23,114 INFO L168 Benchmark]: Toolchain (without parser) took 24571.92 ms. Allocated memory was 90.2 MB in the beginning and 241.2 MB in the end (delta: 151.0 MB). Free memory was 54.0 MB in the beginning and 181.4 MB in the end (delta: -127.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,115 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:23,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 981.61 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 69.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.02 ms. Allocated memory is still 109.1 MB. Free memory was 69.2 MB in the beginning and 63.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,117 INFO L168 Benchmark]: Boogie Preprocessor took 76.35 ms. Allocated memory is still 109.1 MB. Free memory was 63.9 MB in the beginning and 59.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,118 INFO L168 Benchmark]: RCFGBuilder took 1597.13 ms. Allocated memory is still 109.1 MB. Free memory was 59.7 MB in the beginning and 52.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,118 INFO L168 Benchmark]: TraceAbstraction took 21617.28 ms. Allocated memory was 109.1 MB in the beginning and 241.2 MB in the end (delta: 132.1 MB). Free memory was 52.1 MB in the beginning and 196.0 MB in the end (delta: -144.0 MB). Peak memory consumption was 124.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,119 INFO L168 Benchmark]: Witness Printer took 173.24 ms. Allocated memory is still 241.2 MB. Free memory was 196.0 MB in the beginning and 181.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:23,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 981.61 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 69.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.02 ms. Allocated memory is still 109.1 MB. Free memory was 69.2 MB in the beginning and 63.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.35 ms. Allocated memory is still 109.1 MB. Free memory was 63.9 MB in the beginning and 59.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1597.13 ms. Allocated memory is still 109.1 MB. Free memory was 59.7 MB in the beginning and 52.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21617.28 ms. Allocated memory was 109.1 MB in the beginning and 241.2 MB in the end (delta: 132.1 MB). Free memory was 52.1 MB in the beginning and 196.0 MB in the end (delta: -144.0 MB). Peak memory consumption was 124.4 MB. Max. memory is 16.1 GB. * Witness Printer took 173.24 ms. Allocated memory is still 241.2 MB. Free memory was 196.0 MB in the beginning and 181.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 557]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.5s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1603 SDtfs, 1885 SDslu, 248 SDs, 0 SdLazy, 5482 SolverSat, 837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1287 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3257occurred in iteration=9, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 490 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 427 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1036 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 4030 NumberOfCodeBlocks, 4030 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4011 ConstructedInterpolants, 0 QuantifiedInterpolants, 9633 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2200 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 19 InterpolantComputations, 14 PerfectInterpolantSequences, 2900/3040 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((((((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0) || ((((((9 <= a28 && a11 == 1) && a21 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((a11 == 1 && a17 <= 8) && a28 <= 7) && a25 <= 0)) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || ((((a25 == 1 && a28 <= 8) && a11 == 0) && a17 <= 8) && a19 == 1)) || ((((((a25 == 1 && !(3 == input)) && a28 == 11) && a21 == 1) && a17 <= 8) && a19 == 1) && !(a11 == 1))) || a17 <= 7) || (((((a21 == 1 && a11 == 0) && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || (((a28 <= 8 && a11 == 0) && a17 <= 8) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a11 == 1) && a21 == 1) && a19 == 1) && a28 == 9) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0) || ((((((9 <= a28 && a11 == 1) && a21 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || (((a11 == 1 && a17 <= 8) && a28 <= 7) && a25 <= 0)) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || ((((a25 == 1 && a28 <= 8) && a11 == 0) && a17 <= 8) && a19 == 1)) || ((((((a25 == 1 && !(3 == input)) && a28 == 11) && a21 == 1) && a17 <= 8) && a19 == 1) && !(a11 == 1))) || a17 <= 7) || (((((a21 == 1 && a11 == 0) && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || (((a28 <= 8 && a11 == 0) && a17 <= 8) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a11 == 1) && a21 == 1) && a19 == 1) && a28 == 9) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:42:23,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c998959-499f-484e-a48d-9fc2e9a842ec/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...